Algebra Examples

$f (y) = \frac{2 y^{3} - y^{2} + 2 y - 1}{y^{3} - y^{2} + y - 1}$ , $g (y) = \frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}$

Step 1

Set up the composite result function.

$f (g (y))$

Step 2

Evaluate $f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})$ by substituting in the value of $g$ into $f$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{2 {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{3} - {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2} + 2 (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) - 1}{{(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{3} - {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2} + \frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1} - 1}$

Step 3

Remove parentheses.

Step 4

Multiply the numerator and denominator of the fraction by $4 y^{2} - 4 y + 1$ .

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Step 4.1

Multiply $\frac{2 {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{3} - {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2} + 2 \frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1} - 1}{{(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{3} - {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2} + \frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1} - 1}$ by $\frac{4 y^{2} - 4 y + 1}{4 y^{2} - 4 y + 1}$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{4 y^{2} - 4 y + 1}{4 y^{2} - 4 y + 1} \cdot \frac{2 {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{3} - {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2} + 2 (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) - 1}{{(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{3} - {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2} + \frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1} - 1}$

Step 4.2

Combine.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{(4 y^{2} - 4 y + 1) (2 {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{3} - {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2} + 2 (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) - 1)}{(4 y^{2} - 4 y + 1) ({(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{3} - {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2} + \frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1} - 1)}$

Step 5

Apply the distributive property.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{(4 y^{2} - 4 y + 1) (2 {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{3}) + (4 y^{2} - 4 y + 1) (- {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) (2 (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})) + (4 y^{2} - 4 y + 1) \cdot - 1}{(4 y^{2} - 4 y + 1) {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 6

Simplify by cancelling.

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Step 6.1

Factor by grouping.

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Step 6.1.1

For a polynomial of the form $a x^{2} + b x + c$ , rewrite the middle term as a sum of two terms whose product is $a \cdot c = 2 \cdot 1 = 2$ and whose sum is $b = - 3$ .

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Step 6.1.1.1

Factor $- 3$ out of $- 3 y$ .

Step 6.1.1.2

Rewrite $- 3$ as $- 1$ plus $- 2$

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{(4 y^{2} - 4 y + 1) (2 {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{3}) + (4 y^{2} - 4 y + 1) (- {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) (2 (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})) + (4 y^{2} - 4 y + 1) \cdot - 1}{(4 y^{2} - 4 y + 1) {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{2 y^{2} + (- 1 - 2) y + 1}{4 y^{2} - 4 y + 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 6.1.1.3

Apply the distributive property.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{(4 y^{2} - 4 y + 1) (2 {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{3}) + (4 y^{2} - 4 y + 1) (- {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) (2 (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})) + (4 y^{2} - 4 y + 1) \cdot - 1}{(4 y^{2} - 4 y + 1) {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{2 y^{2} - 1 y - 2 y + 1}{4 y^{2} - 4 y + 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 6.1.2

Factor out the greatest common factor from each group.

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Step 6.1.2.1

Group the first two terms and the last two terms.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{(4 y^{2} - 4 y + 1) (2 {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{3}) + (4 y^{2} - 4 y + 1) (- {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) (2 (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})) + (4 y^{2} - 4 y + 1) \cdot - 1}{(4 y^{2} - 4 y + 1) {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{(2 y^{2} - 1 y) - 2 y + 1}{4 y^{2} - 4 y + 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 6.1.2.2

Factor out the greatest common factor (GCF) from each group.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{(4 y^{2} - 4 y + 1) (2 {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{3}) + (4 y^{2} - 4 y + 1) (- {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) (2 (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})) + (4 y^{2} - 4 y + 1) \cdot - 1}{(4 y^{2} - 4 y + 1) {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y (2 y - 1) - (2 y - 1)}{4 y^{2} - 4 y + 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 6.1.3

Factor the polynomial by factoring out the greatest common factor, $2 y - 1$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{(4 y^{2} - 4 y + 1) (2 {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{3}) + (4 y^{2} - 4 y + 1) (- {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) (2 (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})) + (4 y^{2} - 4 y + 1) \cdot - 1}{(4 y^{2} - 4 y + 1) {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{(2 y - 1) (y - 1)}{4 y^{2} - 4 y + 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 6.2

Factor using the perfect square rule.

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Step 6.2.1

Rewrite $4 y^{2}$ as ${(2 y)}^{2}$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{(4 y^{2} - 4 y + 1) (2 {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{3}) + (4 y^{2} - 4 y + 1) (- {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) (2 (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})) + (4 y^{2} - 4 y + 1) \cdot - 1}{(4 y^{2} - 4 y + 1) {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{(2 y - 1) (y - 1)}{{(2 y)}^{2} - 4 y + 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 6.2.2

Rewrite $1$ as $1^{2}$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{(4 y^{2} - 4 y + 1) (2 {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{3}) + (4 y^{2} - 4 y + 1) (- {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) (2 (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})) + (4 y^{2} - 4 y + 1) \cdot - 1}{(4 y^{2} - 4 y + 1) {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{(2 y - 1) (y - 1)}{{(2 y)}^{2} - 4 y + 1^{2}}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 6.2.3

Check that the middle term is two times the product of the numbers being squared in the first term and third term.

$4 y = 2 \cdot (2 y) \cdot 1$

Step 6.2.4

Rewrite the polynomial.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{(4 y^{2} - 4 y + 1) (2 {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{3}) + (4 y^{2} - 4 y + 1) (- {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) (2 (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})) + (4 y^{2} - 4 y + 1) \cdot - 1}{(4 y^{2} - 4 y + 1) {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{(2 y - 1) (y - 1)}{{(2 y)}^{2} - 2 \cdot (2 y) \cdot 1 + 1^{2}}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 6.2.5

Factor using the perfect square trinomial rule $a^{2} - 2 a b + b^{2} = {(a - b)}^{2}$ , where $a = 2 y$ and $b = 1$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{(4 y^{2} - 4 y + 1) (2 {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{3}) + (4 y^{2} - 4 y + 1) (- {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) (2 (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})) + (4 y^{2} - 4 y + 1) \cdot - 1}{(4 y^{2} - 4 y + 1) {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 7

Cancel the common factors.

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Step 7.1

Factor $2 y - 1$ out of ${(2 y - 1)}^{2}$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{(4 y^{2} - 4 y + 1) (2 {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{3}) + (4 y^{2} - 4 y + 1) (- {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) (2 (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})) + (4 y^{2} - 4 y + 1) \cdot - 1}{(4 y^{2} - 4 y + 1) {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{(2 y - 1) (y - 1)}{(2 y - 1) (2 y - 1)}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 7.2

Cancel the common factor.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{(4 y^{2} - 4 y + 1) (2 {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{3}) + (4 y^{2} - 4 y + 1) (- {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) (2 (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})) + (4 y^{2} - 4 y + 1) \cdot - 1}{(4 y^{2} - 4 y + 1) {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{(2 y - 1) (y - 1)}{(2 y - 1) (2 y - 1)}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 7.3

Rewrite the expression.

Step 8

Factor by grouping.

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Step 8.1

For a polynomial of the form $a x^{2} + b x + c$ , rewrite the middle term as a sum of two terms whose product is $a \cdot c = 2 \cdot 1 = 2$ and whose sum is $b = - 3$ .

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Step 8.1.1

Factor $- 3$ out of $- 3 y$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{(4 y^{2} - 4 y + 1) \cdot (2 {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{3}) + (4 y^{2} - 4 y + 1) (- {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) \cdot (2 (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})) + (4 y^{2} - 4 y + 1) \cdot - 1}{(4 y^{2} - 4 y + 1) {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 8.1.2

Rewrite $- 3$ as $- 1$ plus $- 2$

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{(4 y^{2} - 4 y + 1) \cdot (2 {(\frac{2 y^{2} + (- 1 - 2) y + 1}{4 y^{2} - 4 y + 1})}^{3}) + (4 y^{2} - 4 y + 1) (- {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) \cdot (2 (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})) + (4 y^{2} - 4 y + 1) \cdot - 1}{(4 y^{2} - 4 y + 1) {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 8.1.3

Apply the distributive property.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{(4 y^{2} - 4 y + 1) \cdot (2 {(\frac{2 y^{2} - 1 y - 2 y + 1}{4 y^{2} - 4 y + 1})}^{3}) + (4 y^{2} - 4 y + 1) (- {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) \cdot (2 (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})) + (4 y^{2} - 4 y + 1) \cdot - 1}{(4 y^{2} - 4 y + 1) {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 8.2

Factor out the greatest common factor from each group.

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Step 8.2.1

Group the first two terms and the last two terms.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{(4 y^{2} - 4 y + 1) \cdot (2 {(\frac{(2 y^{2} - 1 y) - 2 y + 1}{4 y^{2} - 4 y + 1})}^{3}) + (4 y^{2} - 4 y + 1) (- {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) \cdot (2 (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})) + (4 y^{2} - 4 y + 1) \cdot - 1}{(4 y^{2} - 4 y + 1) {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 8.2.2

Factor out the greatest common factor (GCF) from each group.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{(4 y^{2} - 4 y + 1) \cdot (2 {(\frac{y (2 y - 1) - (2 y - 1)}{4 y^{2} - 4 y + 1})}^{3}) + (4 y^{2} - 4 y + 1) (- {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) \cdot (2 (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})) + (4 y^{2} - 4 y + 1) \cdot - 1}{(4 y^{2} - 4 y + 1) {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 8.3

Factor the polynomial by factoring out the greatest common factor, $2 y - 1$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{(4 y^{2} - 4 y + 1) \cdot (2 {(\frac{(2 y - 1) (y - 1)}{4 y^{2} - 4 y + 1})}^{3}) + (4 y^{2} - 4 y + 1) (- {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) \cdot (2 (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})) + (4 y^{2} - 4 y + 1) \cdot - 1}{(4 y^{2} - 4 y + 1) {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 9

Factor using the perfect square rule.

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Step 9.1

Rewrite $4 y^{2}$ as ${(2 y)}^{2}$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{(4 y^{2} - 4 y + 1) \cdot (2 {(\frac{(2 y - 1) (y - 1)}{{(2 y)}^{2} - 4 y + 1})}^{3}) + (4 y^{2} - 4 y + 1) (- {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) \cdot (2 (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})) + (4 y^{2} - 4 y + 1) \cdot - 1}{(4 y^{2} - 4 y + 1) {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 9.2

Rewrite $1$ as $1^{2}$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{(4 y^{2} - 4 y + 1) \cdot (2 {(\frac{(2 y - 1) (y - 1)}{{(2 y)}^{2} - 4 y + 1^{2}})}^{3}) + (4 y^{2} - 4 y + 1) (- {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) \cdot (2 (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})) + (4 y^{2} - 4 y + 1) \cdot - 1}{(4 y^{2} - 4 y + 1) {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 9.3

Check that the middle term is two times the product of the numbers being squared in the first term and third term.

$4 y = 2 \cdot (2 y) \cdot 1$

Step 9.4

Rewrite the polynomial.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{(4 y^{2} - 4 y + 1) \cdot (2 {(\frac{(2 y - 1) (y - 1)}{{(2 y)}^{2} - 2 \cdot (2 y) \cdot 1 + 1^{2}})}^{3}) + (4 y^{2} - 4 y + 1) (- {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) \cdot (2 (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})) + (4 y^{2} - 4 y + 1) \cdot - 1}{(4 y^{2} - 4 y + 1) {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 9.5

Factor using the perfect square trinomial rule $a^{2} - 2 a b + b^{2} = {(a - b)}^{2}$ , where $a = 2 y$ and $b = 1$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{(4 y^{2} - 4 y + 1) \cdot (2 {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3}) + (4 y^{2} - 4 y + 1) (- {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) \cdot (2 (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})) + (4 y^{2} - 4 y + 1) \cdot - 1}{(4 y^{2} - 4 y + 1) {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 10

Factor by grouping.

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Step 10.1

For a polynomial of the form $a x^{2} + b x + c$ , rewrite the middle term as a sum of two terms whose product is $a \cdot c = 2 \cdot 1 = 2$ and whose sum is $b = - 3$ .

Tap for more steps...

Step 10.1.1

Factor $- 3$ out of $- 3 y$ .

Step 10.1.2

Rewrite $- 3$ as $- 1$ plus $- 2$

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{(4 y^{2} - 4 y + 1) \cdot (2 {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3}) + (4 y^{2} - 4 y + 1) (- {(\frac{2 y^{2} + (- 1 - 2) y + 1}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) \cdot (2 (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})) + (4 y^{2} - 4 y + 1) \cdot - 1}{(4 y^{2} - 4 y + 1) {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 10.1.3

Apply the distributive property.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{(4 y^{2} - 4 y + 1) \cdot (2 {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3}) + (4 y^{2} - 4 y + 1) (- {(\frac{2 y^{2} - 1 y - 2 y + 1}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) \cdot (2 (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})) + (4 y^{2} - 4 y + 1) \cdot - 1}{(4 y^{2} - 4 y + 1) {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 10.2

Factor out the greatest common factor from each group.

Tap for more steps...

Step 10.2.1

Group the first two terms and the last two terms.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{(4 y^{2} - 4 y + 1) \cdot (2 {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3}) + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y^{2} - 1 y) - 2 y + 1}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) \cdot (2 (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})) + (4 y^{2} - 4 y + 1) \cdot - 1}{(4 y^{2} - 4 y + 1) {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 10.2.2

Factor out the greatest common factor (GCF) from each group.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{(4 y^{2} - 4 y + 1) \cdot (2 {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3}) + (4 y^{2} - 4 y + 1) (- {(\frac{y (2 y - 1) - (2 y - 1)}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) \cdot (2 (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})) + (4 y^{2} - 4 y + 1) \cdot - 1}{(4 y^{2} - 4 y + 1) {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 10.3

Factor the polynomial by factoring out the greatest common factor, $2 y - 1$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{(4 y^{2} - 4 y + 1) \cdot (2 {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3}) + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) \cdot (2 (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})) + (4 y^{2} - 4 y + 1) \cdot - 1}{(4 y^{2} - 4 y + 1) {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 11

Factor using the perfect square rule.

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Step 11.1

Rewrite $4 y^{2}$ as ${(2 y)}^{2}$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{(4 y^{2} - 4 y + 1) \cdot (2 {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3}) + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y)}^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) \cdot (2 (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})) + (4 y^{2} - 4 y + 1) \cdot - 1}{(4 y^{2} - 4 y + 1) {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 11.2

Rewrite $1$ as $1^{2}$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{(4 y^{2} - 4 y + 1) \cdot (2 {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3}) + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y)}^{2} - 4 y + 1^{2}})}^{2}) + (4 y^{2} - 4 y + 1) \cdot (2 (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})) + (4 y^{2} - 4 y + 1) \cdot - 1}{(4 y^{2} - 4 y + 1) {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 11.3

Check that the middle term is two times the product of the numbers being squared in the first term and third term.

$4 y = 2 \cdot (2 y) \cdot 1$

Step 11.4

Rewrite the polynomial.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{(4 y^{2} - 4 y + 1) \cdot (2 {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3}) + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y)}^{2} - 2 \cdot (2 y) \cdot 1 + 1^{2}})}^{2}) + (4 y^{2} - 4 y + 1) \cdot (2 (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})) + (4 y^{2} - 4 y + 1) \cdot - 1}{(4 y^{2} - 4 y + 1) {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 11.5

Factor using the perfect square trinomial rule $a^{2} - 2 a b + b^{2} = {(a - b)}^{2}$ , where $a = 2 y$ and $b = 1$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{(4 y^{2} - 4 y + 1) \cdot (2 {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3}) + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) \cdot (2 (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})) + (4 y^{2} - 4 y + 1) \cdot - 1}{(4 y^{2} - 4 y + 1) {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 12

Factor by grouping.

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Step 12.1

For a polynomial of the form $a x^{2} + b x + c$ , rewrite the middle term as a sum of two terms whose product is $a \cdot c = 2 \cdot 1 = 2$ and whose sum is $b = - 3$ .

Tap for more steps...

Step 12.1.1

Factor $- 3$ out of $- 3 y$ .

Step 12.1.2

Rewrite $- 3$ as $- 1$ plus $- 2$

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{(4 y^{2} - 4 y + 1) \cdot (2 {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3}) + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) \cdot (2 (\frac{2 y^{2} + (- 1 - 2) y + 1}{4 y^{2} - 4 y + 1})) + (4 y^{2} - 4 y + 1) \cdot - 1}{(4 y^{2} - 4 y + 1) {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 12.1.3

Apply the distributive property.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{(4 y^{2} - 4 y + 1) \cdot (2 {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3}) + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) \cdot (2 (\frac{2 y^{2} - 1 y - 2 y + 1}{4 y^{2} - 4 y + 1})) + (4 y^{2} - 4 y + 1) \cdot - 1}{(4 y^{2} - 4 y + 1) {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 12.2

Factor out the greatest common factor from each group.

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Step 12.2.1

Group the first two terms and the last two terms.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{(4 y^{2} - 4 y + 1) \cdot (2 {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3}) + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) \cdot (2 (\frac{(2 y^{2} - 1 y) - 2 y + 1}{4 y^{2} - 4 y + 1})) + (4 y^{2} - 4 y + 1) \cdot - 1}{(4 y^{2} - 4 y + 1) {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 12.2.2

Factor out the greatest common factor (GCF) from each group.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{(4 y^{2} - 4 y + 1) \cdot (2 {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3}) + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) \cdot (2 (\frac{y (2 y - 1) - (2 y - 1)}{4 y^{2} - 4 y + 1})) + (4 y^{2} - 4 y + 1) \cdot - 1}{(4 y^{2} - 4 y + 1) {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 12.3

Factor the polynomial by factoring out the greatest common factor, $2 y - 1$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{(4 y^{2} - 4 y + 1) \cdot (2 {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3}) + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) \cdot (2 (\frac{(2 y - 1) (y - 1)}{4 y^{2} - 4 y + 1})) + (4 y^{2} - 4 y + 1) \cdot - 1}{(4 y^{2} - 4 y + 1) {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 13

Factor using the perfect square rule.

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Step 13.1

Rewrite $4 y^{2}$ as ${(2 y)}^{2}$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{(4 y^{2} - 4 y + 1) \cdot (2 {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3}) + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) \cdot (2 (\frac{(2 y - 1) (y - 1)}{{(2 y)}^{2} - 4 y + 1})) + (4 y^{2} - 4 y + 1) \cdot - 1}{(4 y^{2} - 4 y + 1) {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 13.2

Rewrite $1$ as $1^{2}$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{(4 y^{2} - 4 y + 1) \cdot (2 {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3}) + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) \cdot (2 (\frac{(2 y - 1) (y - 1)}{{(2 y)}^{2} - 4 y + 1^{2}})) + (4 y^{2} - 4 y + 1) \cdot - 1}{(4 y^{2} - 4 y + 1) {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 13.3

Check that the middle term is two times the product of the numbers being squared in the first term and third term.

$4 y = 2 \cdot (2 y) \cdot 1$

Step 13.4

Rewrite the polynomial.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{(4 y^{2} - 4 y + 1) \cdot (2 {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3}) + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) \cdot (2 (\frac{(2 y - 1) (y - 1)}{{(2 y)}^{2} - 2 \cdot (2 y) \cdot 1 + 1^{2}})) + (4 y^{2} - 4 y + 1) \cdot - 1}{(4 y^{2} - 4 y + 1) {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 13.5

Factor using the perfect square trinomial rule $a^{2} - 2 a b + b^{2} = {(a - b)}^{2}$ , where $a = 2 y$ and $b = 1$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{(4 y^{2} - 4 y + 1) \cdot (2 {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3}) + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) \cdot (2 (\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})) + (4 y^{2} - 4 y + 1) \cdot - 1}{(4 y^{2} - 4 y + 1) {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 14

Factor by grouping.

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Step 14.1

For a polynomial of the form $a x^{2} + b x + c$ , rewrite the middle term as a sum of two terms whose product is $a \cdot c = 2 \cdot 1 = 2$ and whose sum is $b = - 3$ .

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Step 14.1.1

Factor $- 3$ out of $- 3 y$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{(4 y^{2} - 4 y + 1) \cdot (2 {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3}) + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) \cdot (2 (\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})) + (4 y^{2} - 4 y + 1) \cdot - 1}{(4 y^{2} - 4 y + 1) {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 14.1.2

Rewrite $- 3$ as $- 1$ plus $- 2$

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{(4 y^{2} - 4 y + 1) \cdot (2 {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3}) + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) \cdot (2 (\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})) + (4 y^{2} - 4 y + 1) \cdot - 1}{(4 y^{2} - 4 y + 1) {(\frac{2 y^{2} + (- 1 - 2) y + 1}{4 y^{2} - 4 y + 1})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 14.1.3

Apply the distributive property.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{(4 y^{2} - 4 y + 1) \cdot (2 {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3}) + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) \cdot (2 (\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})) + (4 y^{2} - 4 y + 1) \cdot - 1}{(4 y^{2} - 4 y + 1) {(\frac{2 y^{2} - 1 y - 2 y + 1}{4 y^{2} - 4 y + 1})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 14.2

Factor out the greatest common factor from each group.

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Step 14.2.1

Group the first two terms and the last two terms.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{(4 y^{2} - 4 y + 1) \cdot (2 {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3}) + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) \cdot (2 (\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})) + (4 y^{2} - 4 y + 1) \cdot - 1}{(4 y^{2} - 4 y + 1) {(\frac{(2 y^{2} - 1 y) - 2 y + 1}{4 y^{2} - 4 y + 1})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 14.2.2

Factor out the greatest common factor (GCF) from each group.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{(4 y^{2} - 4 y + 1) \cdot (2 {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3}) + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) \cdot (2 (\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})) + (4 y^{2} - 4 y + 1) \cdot - 1}{(4 y^{2} - 4 y + 1) {(\frac{y (2 y - 1) - (2 y - 1)}{4 y^{2} - 4 y + 1})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 14.3

Factor the polynomial by factoring out the greatest common factor, $2 y - 1$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{(4 y^{2} - 4 y + 1) \cdot (2 {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3}) + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) \cdot (2 (\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})) + (4 y^{2} - 4 y + 1) \cdot - 1}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{4 y^{2} - 4 y + 1})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 15

Factor using the perfect square rule.

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Step 15.1

Rewrite $4 y^{2}$ as ${(2 y)}^{2}$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{(4 y^{2} - 4 y + 1) \cdot (2 {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3}) + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) \cdot (2 (\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})) + (4 y^{2} - 4 y + 1) \cdot - 1}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y)}^{2} - 4 y + 1})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 15.2

Rewrite $1$ as $1^{2}$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{(4 y^{2} - 4 y + 1) \cdot (2 {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3}) + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) \cdot (2 (\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})) + (4 y^{2} - 4 y + 1) \cdot - 1}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y)}^{2} - 4 y + 1^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 15.3

Check that the middle term is two times the product of the numbers being squared in the first term and third term.

$4 y = 2 \cdot (2 y) \cdot 1$

Step 15.4

Rewrite the polynomial.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{(4 y^{2} - 4 y + 1) \cdot (2 {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3}) + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) \cdot (2 (\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})) + (4 y^{2} - 4 y + 1) \cdot - 1}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y)}^{2} - 2 \cdot (2 y) \cdot 1 + 1^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 15.5

Factor using the perfect square trinomial rule $a^{2} - 2 a b + b^{2} = {(a - b)}^{2}$ , where $a = 2 y$ and $b = 1$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{(4 y^{2} - 4 y + 1) \cdot (2 {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3}) + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) \cdot (2 (\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})) + (4 y^{2} - 4 y + 1) \cdot - 1}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 16

Factor by grouping.

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Step 16.1

For a polynomial of the form $a x^{2} + b x + c$ , rewrite the middle term as a sum of two terms whose product is $a \cdot c = 2 \cdot 1 = 2$ and whose sum is $b = - 3$ .

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Step 16.1.1

Factor $- 3$ out of $- 3 y$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{(4 y^{2} - 4 y + 1) \cdot (2 {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3}) + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) \cdot (2 (\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})) + (4 y^{2} - 4 y + 1) \cdot - 1}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 16.1.2

Rewrite $- 3$ as $- 1$ plus $- 2$

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{(4 y^{2} - 4 y + 1) \cdot (2 {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3}) + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) \cdot (2 (\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})) + (4 y^{2} - 4 y + 1) \cdot - 1}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{2 y^{2} + (- 1 - 2) y + 1}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 16.1.3

Apply the distributive property.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{(4 y^{2} - 4 y + 1) \cdot (2 {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3}) + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) \cdot (2 (\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})) + (4 y^{2} - 4 y + 1) \cdot - 1}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{2 y^{2} - 1 y - 2 y + 1}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 16.2

Factor out the greatest common factor from each group.

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Step 16.2.1

Group the first two terms and the last two terms.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{(4 y^{2} - 4 y + 1) \cdot (2 {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3}) + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) \cdot (2 (\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})) + (4 y^{2} - 4 y + 1) \cdot - 1}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y^{2} - 1 y) - 2 y + 1}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 16.2.2

Factor out the greatest common factor (GCF) from each group.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{(4 y^{2} - 4 y + 1) \cdot (2 {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3}) + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) \cdot (2 (\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})) + (4 y^{2} - 4 y + 1) \cdot - 1}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{y (2 y - 1) - (2 y - 1)}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 16.3

Factor the polynomial by factoring out the greatest common factor, $2 y - 1$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{(4 y^{2} - 4 y + 1) \cdot (2 {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3}) + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) \cdot (2 (\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})) + (4 y^{2} - 4 y + 1) \cdot - 1}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{4 y^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 17

Factor using the perfect square rule.

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Step 17.1

Rewrite $4 y^{2}$ as ${(2 y)}^{2}$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{(4 y^{2} - 4 y + 1) \cdot (2 {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3}) + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) \cdot (2 (\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})) + (4 y^{2} - 4 y + 1) \cdot - 1}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y)}^{2} - 4 y + 1})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 17.2

Rewrite $1$ as $1^{2}$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{(4 y^{2} - 4 y + 1) \cdot (2 {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3}) + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) \cdot (2 (\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})) + (4 y^{2} - 4 y + 1) \cdot - 1}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y)}^{2} - 4 y + 1^{2}})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 17.3

Check that the middle term is two times the product of the numbers being squared in the first term and third term.

$4 y = 2 \cdot (2 y) \cdot 1$

Step 17.4

Rewrite the polynomial.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{(4 y^{2} - 4 y + 1) \cdot (2 {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3}) + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) \cdot (2 (\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})) + (4 y^{2} - 4 y + 1) \cdot - 1}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y)}^{2} - 2 \cdot (2 y) \cdot 1 + 1^{2}})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 17.5

Factor using the perfect square trinomial rule $a^{2} - 2 a b + b^{2} = {(a - b)}^{2}$ , where $a = 2 y$ and $b = 1$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{(4 y^{2} - 4 y + 1) \cdot (2 {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3}) + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) \cdot (2 (\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})) + (4 y^{2} - 4 y + 1) \cdot - 1}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 18

Simplify the numerator.

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Step 18.1

Factor $4 y^{2} - 4 y + 1$ out of $(4 y^{2} - 4 y + 1) \cdot 2 {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) \cdot 2 \frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}} + (4 y^{2} - 4 y + 1) \cdot - 1$ .

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Step 18.1.1

Factor $4 y^{2} - 4 y + 1$ out of $(4 y^{2} - 4 y + 1) \cdot 2 {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3}$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{(4 y^{2} - 4 y + 1) (2 {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3}) + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) \cdot (2 (\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})) + (4 y^{2} - 4 y + 1) \cdot - 1}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 18.1.2

Factor $4 y^{2} - 4 y + 1$ out of $(4 y^{2} - 4 y + 1) \cdot 2 \frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}}$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{(4 y^{2} - 4 y + 1) (2 {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3}) + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) (2 (\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})) + (4 y^{2} - 4 y + 1) \cdot - 1}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 18.1.3

Factor $4 y^{2} - 4 y + 1$ out of $(4 y^{2} - 4 y + 1) \cdot - 1$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{(4 y^{2} - 4 y + 1) (2 {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3}) + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) (2 (\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})) + (4 y^{2} - 4 y + 1) (- 1)}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 18.1.4

Factor $4 y^{2} - 4 y + 1$ out of $(4 y^{2} - 4 y + 1) (2 {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3}) + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2})$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{(4 y^{2} - 4 y + 1) (2 {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} - {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) (2 (\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})) + (4 y^{2} - 4 y + 1) (- 1)}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 18.1.5

Factor $4 y^{2} - 4 y + 1$ out of $(4 y^{2} - 4 y + 1) (2 {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} - {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) (2 \frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{(4 y^{2} - 4 y + 1) (2 {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} - {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2} + 2 (\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})) + (4 y^{2} - 4 y + 1) (- 1)}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 18.1.6

Factor $4 y^{2} - 4 y + 1$ out of $(4 y^{2} - 4 y + 1) (2 {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} - {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2} + 2 \frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}}) + (4 y^{2} - 4 y + 1) (- 1)$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{(4 y^{2} - 4 y + 1) (2 {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} - {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2} + 2 (\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}}) - 1)}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 18.2

Factor using the perfect square rule.

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Step 18.2.1

Rewrite $4 y^{2}$ as ${(2 y)}^{2}$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{({(2 y)}^{2} - 4 y + 1) (2 {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} - {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2} + 2 (\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}}) - 1)}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 18.2.2

Rewrite $1$ as $1^{2}$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{({(2 y)}^{2} - 4 y + 1^{2}) (2 {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} - {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2} + 2 (\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}}) - 1)}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 18.2.3

Check that the middle term is two times the product of the numbers being squared in the first term and third term.

$4 y = 2 \cdot (2 y) \cdot 1$

Step 18.2.4

Rewrite the polynomial.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{({(2 y)}^{2} - 2 \cdot (2 y) \cdot 1 + 1^{2}) (2 {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} - {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2} + 2 (\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}}) - 1)}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 18.2.5

Factor using the perfect square trinomial rule $a^{2} - 2 a b + b^{2} = {(a - b)}^{2}$ , where $a = 2 y$ and $b = 1$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{{(2 y - 1)}^{2} (2 {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} - {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2} + 2 (\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}}) - 1)}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 18.3

Factor out the greatest common factor from each group.

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Step 18.3.1

Group the first two terms and the last two terms.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{{(2 y - 1)}^{2} ((2 {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} - {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + 2 (\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}}) - 1)}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 18.3.2

Factor out the greatest common factor (GCF) from each group.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{{(2 y - 1)}^{2} ({(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2} (2 (\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}}) - 1) + 1 (2 (\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}}) - 1))}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 18.4

Factor the polynomial by factoring out the greatest common factor, $2 \frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}} - 1$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{{(2 y - 1)}^{2} ((2 (\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}}) - 1) ({(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2} + 1))}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 18.5

Cancel the common factors.

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Step 18.5.1

Factor $2 y - 1$ out of ${(2 y - 1)}^{2}$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{{(2 y - 1)}^{2} ((2 (\frac{(2 y - 1) (y - 1)}{(2 y - 1) (2 y - 1)}) - 1) ({(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2} + 1))}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 18.5.2

Cancel the common factor.

Step 18.5.3

Rewrite the expression.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{{(2 y - 1)}^{2} ((2 (\frac{y - 1}{2 y - 1}) - 1) ({(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2} + 1))}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 18.6

Combine $2$ and $\frac{y - 1}{2 y - 1}$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{{(2 y - 1)}^{2} ((\frac{2 (y - 1)}{2 y - 1} - 1) ({(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2} + 1))}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 18.7

To write $- 1$ as a fraction with a common denominator, multiply by $\frac{2 y - 1}{2 y - 1}$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{{(2 y - 1)}^{2} ((\frac{2 (y - 1)}{2 y - 1} - 1 \cdot \frac{2 y - 1}{2 y - 1}) ({(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2} + 1))}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 18.8

Combine $- 1$ and $\frac{2 y - 1}{2 y - 1}$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{{(2 y - 1)}^{2} ((\frac{2 (y - 1)}{2 y - 1} + \frac{- (2 y - 1)}{2 y - 1}) ({(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2} + 1))}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 18.9

Combine the numerators over the common denominator.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{{(2 y - 1)}^{2} (\frac{2 (y - 1) - (2 y - 1)}{2 y - 1} \cdot ({(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2} + 1))}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 18.10

Rewrite $\frac{2 (y - 1) - (2 y - 1)}{2 y - 1}$ in a factored form.

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Step 18.10.1

Apply the distributive property.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{{(2 y - 1)}^{2} (\frac{2 y + 2 \cdot - 1 - (2 y - 1)}{2 y - 1} \cdot ({(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2} + 1))}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 18.10.2

Multiply $2$ by $- 1$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{{(2 y - 1)}^{2} (\frac{2 y - 2 - (2 y - 1)}{2 y - 1} \cdot ({(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2} + 1))}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 18.10.3

Apply the distributive property.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{{(2 y - 1)}^{2} (\frac{2 y - 2 - (2 y) + 1}{2 y - 1} \cdot ({(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2} + 1))}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 18.10.4

Multiply $2$ by $- 1$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{{(2 y - 1)}^{2} (\frac{2 y - 2 - 2 y + 1}{2 y - 1} \cdot ({(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2} + 1))}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 18.10.5

Multiply $- 1$ by $- 1$ .

Step 18.10.6

Subtract $2 y$ from $2 y$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{{(2 y - 1)}^{2} (\frac{0 - 2 + 1}{2 y - 1} \cdot ({(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2} + 1))}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 18.10.7

Subtract $2$ from $0$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{{(2 y - 1)}^{2} (\frac{- 2 + 1}{2 y - 1} \cdot ({(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2} + 1))}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 18.10.8

Add $- 2$ and $1$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{{(2 y - 1)}^{2} (\frac{- 1}{2 y - 1} \cdot ({(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2} + 1))}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 18.11

Cancel the common factors.

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Step 18.11.1

Factor $2 y - 1$ out of ${(2 y - 1)}^{2}$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{{(2 y - 1)}^{2} (\frac{- 1}{2 y - 1} \cdot ({(\frac{(2 y - 1) (y - 1)}{(2 y - 1) (2 y - 1)})}^{2} + 1))}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 18.11.2

Cancel the common factor.

Step 18.11.3

Rewrite the expression.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{{(2 y - 1)}^{2} (\frac{- 1}{2 y - 1} \cdot ({(\frac{y - 1}{2 y - 1})}^{2} + 1))}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 18.12

Apply the product rule to $\frac{y - 1}{2 y - 1}$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{{(2 y - 1)}^{2} (\frac{- 1}{2 y - 1} \cdot (\frac{{(y - 1)}^{2}}{{(2 y - 1)}^{2}} + 1))}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 18.13

Write $1$ as a fraction with a common denominator.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{{(2 y - 1)}^{2} (\frac{- 1}{2 y - 1} \cdot (\frac{{(y - 1)}^{2}}{{(2 y - 1)}^{2}} + \frac{{(2 y - 1)}^{2}}{{(2 y - 1)}^{2}}))}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 18.14

Combine the numerators over the common denominator.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{{(2 y - 1)}^{2} (\frac{- 1}{2 y - 1} \cdot \frac{{(y - 1)}^{2} + {(2 y - 1)}^{2}}{{(2 y - 1)}^{2}})}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 18.15

Rewrite $\frac{{(y - 1)}^{2} + {(2 y - 1)}^{2}}{{(2 y - 1)}^{2}}$ in a factored form.

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Step 18.15.1

Rewrite ${(y - 1)}^{2}$ as $(y - 1) (y - 1)$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{{(2 y - 1)}^{2} (\frac{- 1}{2 y - 1} \cdot \frac{(y - 1) (y - 1) + {(2 y - 1)}^{2}}{{(2 y - 1)}^{2}})}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 18.15.2

Expand $(y - 1) (y - 1)$ using the FOIL Method.

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Step 18.15.2.1

Apply the distributive property.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{{(2 y - 1)}^{2} (\frac{- 1}{2 y - 1} \cdot \frac{y (y - 1) - 1 (y - 1) + {(2 y - 1)}^{2}}{{(2 y - 1)}^{2}})}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 18.15.2.2

Apply the distributive property.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{{(2 y - 1)}^{2} (\frac{- 1}{2 y - 1} \cdot \frac{y \cdot y + y \cdot - 1 - 1 (y - 1) + {(2 y - 1)}^{2}}{{(2 y - 1)}^{2}})}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 18.15.2.3

Apply the distributive property.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{{(2 y - 1)}^{2} (\frac{- 1}{2 y - 1} \cdot \frac{y \cdot y + y \cdot - 1 - 1 y - 1 \cdot - 1 + {(2 y - 1)}^{2}}{{(2 y - 1)}^{2}})}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 18.15.3

Simplify and combine like terms.

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Step 18.15.3.1

Simplify each term.

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Step 18.15.3.1.1

Multiply $y$ by $y$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{{(2 y - 1)}^{2} (\frac{- 1}{2 y - 1} \cdot \frac{y^{2} + y \cdot - 1 - 1 y - 1 \cdot - 1 + {(2 y - 1)}^{2}}{{(2 y - 1)}^{2}})}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 18.15.3.1.2

Move $- 1$ to the left of $y$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{{(2 y - 1)}^{2} (\frac{- 1}{2 y - 1} \cdot \frac{y^{2} - 1 \cdot y - 1 y - 1 \cdot - 1 + {(2 y - 1)}^{2}}{{(2 y - 1)}^{2}})}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 18.15.3.1.3

Rewrite $- 1 y$ as $- y$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{{(2 y - 1)}^{2} (\frac{- 1}{2 y - 1} \cdot \frac{y^{2} - y - 1 y - 1 \cdot - 1 + {(2 y - 1)}^{2}}{{(2 y - 1)}^{2}})}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 18.15.3.1.4

Rewrite $- 1 y$ as $- y$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{{(2 y - 1)}^{2} (\frac{- 1}{2 y - 1} \cdot \frac{y^{2} - y - y - 1 \cdot - 1 + {(2 y - 1)}^{2}}{{(2 y - 1)}^{2}})}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 18.15.3.1.5

Multiply $- 1$ by $- 1$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{{(2 y - 1)}^{2} (\frac{- 1}{2 y - 1} \cdot \frac{y^{2} - y - y + 1 + {(2 y - 1)}^{2}}{{(2 y - 1)}^{2}})}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 18.15.3.2

Subtract $y$ from $- y$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{{(2 y - 1)}^{2} (\frac{- 1}{2 y - 1} \cdot \frac{y^{2} - 2 y + 1 + {(2 y - 1)}^{2}}{{(2 y - 1)}^{2}})}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 18.15.4

Rewrite ${(2 y - 1)}^{2}$ as $(2 y - 1) (2 y - 1)$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{{(2 y - 1)}^{2} (\frac{- 1}{2 y - 1} \cdot \frac{y^{2} - 2 y + 1 + (2 y - 1) (2 y - 1)}{{(2 y - 1)}^{2}})}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 18.15.5

Expand $(2 y - 1) (2 y - 1)$ using the FOIL Method.

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Step 18.15.5.1

Apply the distributive property.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{{(2 y - 1)}^{2} (\frac{- 1}{2 y - 1} \cdot \frac{y^{2} - 2 y + 1 + 2 y (2 y - 1) - 1 (2 y - 1)}{{(2 y - 1)}^{2}})}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 18.15.5.2

Apply the distributive property.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{{(2 y - 1)}^{2} (\frac{- 1}{2 y - 1} \cdot \frac{y^{2} - 2 y + 1 + 2 y (2 y) + 2 y \cdot - 1 - 1 (2 y - 1)}{{(2 y - 1)}^{2}})}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 18.15.5.3

Apply the distributive property.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{{(2 y - 1)}^{2} (\frac{- 1}{2 y - 1} \cdot \frac{y^{2} - 2 y + 1 + 2 y (2 y) + 2 y \cdot - 1 - 1 (2 y) - 1 \cdot - 1}{{(2 y - 1)}^{2}})}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 18.15.6

Simplify and combine like terms.

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Step 18.15.6.1

Simplify each term.

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Step 18.15.6.1.1

Rewrite using the commutative property of multiplication.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{{(2 y - 1)}^{2} (\frac{- 1}{2 y - 1} \cdot \frac{y^{2} - 2 y + 1 + 2 \cdot (2 y \cdot y) + 2 y \cdot - 1 - 1 (2 y) - 1 \cdot - 1}{{(2 y - 1)}^{2}})}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 18.15.6.1.2

Multiply $y$ by $y$ by adding the exponents.

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Step 18.15.6.1.2.1

Move $y$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{{(2 y - 1)}^{2} (\frac{- 1}{2 y - 1} \cdot \frac{y^{2} - 2 y + 1 + 2 \cdot (2 (y \cdot y)) + 2 y \cdot - 1 - 1 (2 y) - 1 \cdot - 1}{{(2 y - 1)}^{2}})}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 18.15.6.1.2.2

Multiply $y$ by $y$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{{(2 y - 1)}^{2} (\frac{- 1}{2 y - 1} \cdot \frac{y^{2} - 2 y + 1 + 2 \cdot (2 y^{2}) + 2 y \cdot - 1 - 1 (2 y) - 1 \cdot - 1}{{(2 y - 1)}^{2}})}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 18.15.6.1.3

Multiply $2$ by $2$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{{(2 y - 1)}^{2} (\frac{- 1}{2 y - 1} \cdot \frac{y^{2} - 2 y + 1 + 4 y^{2} + 2 y \cdot - 1 - 1 (2 y) - 1 \cdot - 1}{{(2 y - 1)}^{2}})}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 18.15.6.1.4

Multiply $- 1$ by $2$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{{(2 y - 1)}^{2} (\frac{- 1}{2 y - 1} \cdot \frac{y^{2} - 2 y + 1 + 4 y^{2} - 2 y - 1 (2 y) - 1 \cdot - 1}{{(2 y - 1)}^{2}})}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 18.15.6.1.5

Multiply $2$ by $- 1$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{{(2 y - 1)}^{2} (\frac{- 1}{2 y - 1} \cdot \frac{y^{2} - 2 y + 1 + 4 y^{2} - 2 y - 2 y - 1 \cdot - 1}{{(2 y - 1)}^{2}})}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 18.15.6.1.6

Multiply $- 1$ by $- 1$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{{(2 y - 1)}^{2} (\frac{- 1}{2 y - 1} \cdot \frac{y^{2} - 2 y + 1 + 4 y^{2} - 2 y - 2 y + 1}{{(2 y - 1)}^{2}})}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 18.15.6.2

Subtract $2 y$ from $- 2 y$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{{(2 y - 1)}^{2} (\frac{- 1}{2 y - 1} \cdot \frac{y^{2} - 2 y + 1 + 4 y^{2} - 4 y + 1}{{(2 y - 1)}^{2}})}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 18.15.7

Add $y^{2}$ and $4 y^{2}$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{{(2 y - 1)}^{2} (\frac{- 1}{2 y - 1} \cdot \frac{5 y^{2} - 2 y + 1 - 4 y + 1}{{(2 y - 1)}^{2}})}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 18.15.8

Subtract $4 y$ from $- 2 y$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{{(2 y - 1)}^{2} (\frac{- 1}{2 y - 1} \cdot \frac{5 y^{2} - 6 y + 1 + 1}{{(2 y - 1)}^{2}})}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 18.15.9

Add $1$ and $1$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{{(2 y - 1)}^{2} (\frac{- 1}{2 y - 1} \cdot \frac{5 y^{2} - 6 y + 2}{{(2 y - 1)}^{2}})}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{{(2 y - 1)}^{2} (\frac{- 1}{2 y - 1}) \cdot \frac{5 y^{2} - 6 y + 2}{{(2 y - 1)}^{2}}}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 18.16

Combine exponents.

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Step 18.16.1

Combine ${(2 y - 1)}^{2}$ and $\frac{- 1}{2 y - 1}$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{\frac{{(2 y - 1)}^{2} \cdot - 1}{2 y - 1} \cdot \frac{5 y^{2} - 6 y + 2}{{(2 y - 1)}^{2}}}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 18.16.2

Multiply $\frac{{(2 y - 1)}^{2} \cdot - 1}{2 y - 1}$ by $\frac{5 y^{2} - 6 y + 2}{{(2 y - 1)}^{2}}$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{\frac{{(2 y - 1)}^{2} \cdot (- 1 (5 y^{2} - 6 y + 2))}{(2 y - 1) {(2 y - 1)}^{2}}}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 18.16.3

Multiply $2 y - 1$ by ${(2 y - 1)}^{2}$ by adding the exponents.

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Step 18.16.3.1

Multiply $2 y - 1$ by ${(2 y - 1)}^{2}$ .

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Step 18.16.3.1.1

Raise $2 y - 1$ to the power of $1$ .

Step 18.16.3.1.2

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{\frac{{(2 y - 1)}^{2} \cdot (- 1 (5 y^{2} - 6 y + 2))}{{(2 y - 1)}^{1 + 2}}}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 18.16.3.2

Add $1$ and $2$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{\frac{{(2 y - 1)}^{2} \cdot (- 1 (5 y^{2} - 6 y + 2))}{{(2 y - 1)}^{3}}}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 18.17

Cancel the common factor of ${(2 y - 1)}^{2}$ and ${(2 y - 1)}^{3}$ .

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Step 18.17.1

Factor ${(2 y - 1)}^{2}$ out of ${(2 y - 1)}^{2} \cdot - 1 (5 y^{2} - 6 y + 2)$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{\frac{{(2 y - 1)}^{2} (- (5 y^{2} - 6 y + 2))}{{(2 y - 1)}^{3}}}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 18.17.2

Cancel the common factors.

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Step 18.17.2.1

Factor ${(2 y - 1)}^{2}$ out of ${(2 y - 1)}^{3}$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{\frac{{(2 y - 1)}^{2} (- (5 y^{2} - 6 y + 2))}{{(2 y - 1)}^{2} (2 y - 1)}}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 18.17.2.2

Cancel the common factor.

Step 18.17.2.3

Rewrite the expression.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{\frac{- (5 y^{2} - 6 y + 2)}{2 y - 1}}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 18.18

Move the negative in front of the fraction.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 19

Simplify the denominator.

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Step 19.1

Factor $4 y^{2} - 4 y + 1$ out of $(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) \frac{y - 1}{2 y - 1} + (4 y^{2} - 4 y + 1) \cdot - 1$ .

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Step 19.1.1

Factor $4 y^{2} - 4 y + 1$ out of $(4 y^{2} - 4 y + 1) {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3}$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{(4 y^{2} - 4 y + 1) ({(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3}) + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) \cdot - 1}$

Step 19.1.2

Factor $4 y^{2} - 4 y + 1$ out of $(4 y^{2} - 4 y + 1) \cdot - 1$ .

Step 19.1.3

Factor $4 y^{2} - 4 y + 1$ out of $(4 y^{2} - 4 y + 1) ({(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3}) + (4 y^{2} - 4 y + 1) (- {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2})$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{(4 y^{2} - 4 y + 1) ({(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} - {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) (- 1)}$

Step 19.1.4

Factor $4 y^{2} - 4 y + 1$ out of $(4 y^{2} - 4 y + 1) ({(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} - {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2}) + (4 y^{2} - 4 y + 1) (\frac{y - 1}{2 y - 1})$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{(4 y^{2} - 4 y + 1) ({(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} - {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2} + \frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) (- 1)}$

Step 19.1.5

Factor $4 y^{2} - 4 y + 1$ out of $(4 y^{2} - 4 y + 1) ({(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} - {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2} + \frac{y - 1}{2 y - 1}) + (4 y^{2} - 4 y + 1) (- 1)$ .

Step 19.2

Factor using the perfect square rule.

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Step 19.2.1

Rewrite $4 y^{2}$ as ${(2 y)}^{2}$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{({(2 y)}^{2} - 4 y + 1) ({(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} - {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2} + \frac{y - 1}{2 y - 1} - 1)}$

Step 19.2.2

Rewrite $1$ as $1^{2}$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{({(2 y)}^{2} - 4 y + 1^{2}) ({(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} - {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2} + \frac{y - 1}{2 y - 1} - 1)}$

Step 19.2.3

Check that the middle term is two times the product of the numbers being squared in the first term and third term.

$4 y = 2 \cdot (2 y) \cdot 1$

Step 19.2.4

Rewrite the polynomial.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{({(2 y)}^{2} - 2 \cdot (2 y) \cdot 1 + 1^{2}) ({(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} - {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2} + \frac{y - 1}{2 y - 1} - 1)}$

Step 19.2.5

Factor using the perfect square trinomial rule $a^{2} - 2 a b + b^{2} = {(a - b)}^{2}$ , where $a = 2 y$ and $b = 1$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} ({(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{3} - {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2} + \frac{y - 1}{2 y - 1} - 1)}$

Step 19.3

Cancel the common factors.

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Step 19.3.1

Factor $2 y - 1$ out of ${(2 y - 1)}^{2}$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} ({(\frac{(2 y - 1) (y - 1)}{(2 y - 1) (2 y - 1)})}^{3} - {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2} + \frac{y - 1}{2 y - 1} - 1)}$

Step 19.3.2

Cancel the common factor.

Step 19.3.3

Rewrite the expression.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} ({(\frac{y - 1}{2 y - 1})}^{3} - {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2} + \frac{y - 1}{2 y - 1} - 1)}$

Step 19.4

Apply the product rule to $\frac{y - 1}{2 y - 1}$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{{(y - 1)}^{3}}{{(2 y - 1)}^{3}} - {(\frac{(2 y - 1) (y - 1)}{{(2 y - 1)}^{2}})}^{2} + \frac{y - 1}{2 y - 1} - 1)}$

Step 19.5

Cancel the common factors.

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Step 19.5.1

Factor $2 y - 1$ out of ${(2 y - 1)}^{2}$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{{(y - 1)}^{3}}{{(2 y - 1)}^{3}} - {(\frac{(2 y - 1) (y - 1)}{(2 y - 1) (2 y - 1)})}^{2} + \frac{y - 1}{2 y - 1} - 1)}$

Step 19.5.2

Cancel the common factor.

Step 19.5.3

Rewrite the expression.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{{(y - 1)}^{3}}{{(2 y - 1)}^{3}} - {(\frac{y - 1}{2 y - 1})}^{2} + \frac{y - 1}{2 y - 1} - 1)}$

Step 19.6

Apply the product rule to $\frac{y - 1}{2 y - 1}$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{{(y - 1)}^{3}}{{(2 y - 1)}^{3}} - \frac{{(y - 1)}^{2}}{{(2 y - 1)}^{2}} + \frac{y - 1}{2 y - 1} - 1)}$

Step 19.7

To write $- \frac{{(y - 1)}^{2}}{{(2 y - 1)}^{2}}$ as a fraction with a common denominator, multiply by $\frac{2 y - 1}{2 y - 1}$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{{(y - 1)}^{3}}{{(2 y - 1)}^{3}} - \frac{{(y - 1)}^{2}}{{(2 y - 1)}^{2}} \cdot \frac{2 y - 1}{2 y - 1} + \frac{y - 1}{2 y - 1} - 1)}$

Step 19.8

Write each expression with a common denominator of ${(2 y - 1)}^{3}$ , by multiplying each by an appropriate factor of $1$ .

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Step 19.8.1

Multiply $\frac{{(y - 1)}^{2}}{{(2 y - 1)}^{2}}$ by $\frac{2 y - 1}{2 y - 1}$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{{(y - 1)}^{3}}{{(2 y - 1)}^{3}} - \frac{{(y - 1)}^{2} (2 y - 1)}{{(2 y - 1)}^{2} (2 y - 1)} + \frac{y - 1}{2 y - 1} - 1)}$

Step 19.8.2

Multiply ${(2 y - 1)}^{2}$ by $2 y - 1$ by adding the exponents.

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Step 19.8.2.1

Multiply ${(2 y - 1)}^{2}$ by $2 y - 1$ .

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Step 19.8.2.1.1

Raise $2 y - 1$ to the power of $1$ .

Step 19.8.2.1.2

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

Step 19.8.2.2

Add $2$ and $1$ .

Step 19.9

Combine the numerators over the common denominator.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{{(y - 1)}^{3} - {(y - 1)}^{2} (2 y - 1)}{{(2 y - 1)}^{3}} + \frac{y - 1}{2 y - 1} - 1)}$

Step 19.10

To write $\frac{y - 1}{2 y - 1}$ as a fraction with a common denominator, multiply by $\frac{{(2 y - 1)}^{2}}{{(2 y - 1)}^{2}}$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{{(y - 1)}^{3} - {(y - 1)}^{2} (2 y - 1)}{{(2 y - 1)}^{3}} + \frac{y - 1}{2 y - 1} \cdot \frac{{(2 y - 1)}^{2}}{{(2 y - 1)}^{2}} - 1)}$

Step 19.11

Write each expression with a common denominator of ${(2 y - 1)}^{3}$ , by multiplying each by an appropriate factor of $1$ .

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Step 19.11.1

Multiply $\frac{y - 1}{2 y - 1}$ by $\frac{{(2 y - 1)}^{2}}{{(2 y - 1)}^{2}}$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{{(y - 1)}^{3} - {(y - 1)}^{2} (2 y - 1)}{{(2 y - 1)}^{3}} + \frac{(y - 1) {(2 y - 1)}^{2}}{(2 y - 1) {(2 y - 1)}^{2}} - 1)}$

Step 19.11.2

Multiply $2 y - 1$ by ${(2 y - 1)}^{2}$ by adding the exponents.

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Step 19.11.2.1

Multiply $2 y - 1$ by ${(2 y - 1)}^{2}$ .

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Step 19.11.2.1.1

Raise $2 y - 1$ to the power of $1$ .

Step 19.11.2.1.2

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

Step 19.11.2.2

Add $1$ and $2$ .

Step 19.12

Combine the numerators over the common denominator.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{{(y - 1)}^{3} - {(y - 1)}^{2} (2 y - 1) + (y - 1) {(2 y - 1)}^{2}}{{(2 y - 1)}^{3}} - 1)}$

Step 19.13

Simplify the numerator.

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Step 19.13.1

Factor $y - 1$ out of ${(y - 1)}^{3} - {(y - 1)}^{2} (2 y - 1) + (y - 1) {(2 y - 1)}^{2}$ .

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Step 19.13.1.1

Factor $y - 1$ out of ${(y - 1)}^{3}$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{(y - 1) {(y - 1)}^{2} - {(y - 1)}^{2} (2 y - 1) + (y - 1) {(2 y - 1)}^{2}}{{(2 y - 1)}^{3}} - 1)}$

Step 19.13.1.2

Factor $y - 1$ out of $- {(y - 1)}^{2} (2 y - 1)$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{(y - 1) {(y - 1)}^{2} + (y - 1) (- (y - 1) (2 y - 1)) + (y - 1) {(2 y - 1)}^{2}}{{(2 y - 1)}^{3}} - 1)}$

Step 19.13.1.3

Factor $y - 1$ out of $(y - 1) {(2 y - 1)}^{2}$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{(y - 1) {(y - 1)}^{2} + (y - 1) (- (y - 1) (2 y - 1)) + (y - 1) ({(2 y - 1)}^{2})}{{(2 y - 1)}^{3}} - 1)}$

Step 19.13.1.4

Factor $y - 1$ out of $(y - 1) {(y - 1)}^{2} + (y - 1) (- (y - 1) (2 y - 1))$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{(y - 1) ({(y - 1)}^{2} - (y - 1) (2 y - 1)) + (y - 1) ({(2 y - 1)}^{2})}{{(2 y - 1)}^{3}} - 1)}$

Step 19.13.1.5

Factor $y - 1$ out of $(y - 1) ({(y - 1)}^{2} - (y - 1) (2 y - 1)) + (y - 1) ({(2 y - 1)}^{2})$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{(y - 1) ({(y - 1)}^{2} - (y - 1) (2 y - 1) + {(2 y - 1)}^{2})}{{(2 y - 1)}^{3}} - 1)}$

Step 19.13.2

Rewrite ${(y - 1)}^{2}$ as $(y - 1) (y - 1)$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{(y - 1) ((y - 1) (y - 1) - (y - 1) (2 y - 1) + {(2 y - 1)}^{2})}{{(2 y - 1)}^{3}} - 1)}$

Step 19.13.3

Expand $(y - 1) (y - 1)$ using the FOIL Method.

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Step 19.13.3.1

Apply the distributive property.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{(y - 1) (y (y - 1) - 1 (y - 1) - (y - 1) (2 y - 1) + {(2 y - 1)}^{2})}{{(2 y - 1)}^{3}} - 1)}$

Step 19.13.3.2

Apply the distributive property.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{(y - 1) (y \cdot y + y \cdot - 1 - 1 (y - 1) - (y - 1) (2 y - 1) + {(2 y - 1)}^{2})}{{(2 y - 1)}^{3}} - 1)}$

Step 19.13.3.3

Apply the distributive property.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{(y - 1) (y \cdot y + y \cdot - 1 - 1 y - 1 \cdot - 1 - (y - 1) (2 y - 1) + {(2 y - 1)}^{2})}{{(2 y - 1)}^{3}} - 1)}$

Step 19.13.4

Simplify and combine like terms.

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Step 19.13.4.1

Simplify each term.

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Step 19.13.4.1.1

Multiply $y$ by $y$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{(y - 1) (y^{2} + y \cdot - 1 - 1 y - 1 \cdot - 1 - (y - 1) (2 y - 1) + {(2 y - 1)}^{2})}{{(2 y - 1)}^{3}} - 1)}$

Step 19.13.4.1.2

Move $- 1$ to the left of $y$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{(y - 1) (y^{2} - 1 \cdot y - 1 y - 1 \cdot - 1 - (y - 1) (2 y - 1) + {(2 y - 1)}^{2})}{{(2 y - 1)}^{3}} - 1)}$

Step 19.13.4.1.3

Rewrite $- 1 y$ as $- y$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{(y - 1) (y^{2} - y - 1 y - 1 \cdot - 1 - (y - 1) (2 y - 1) + {(2 y - 1)}^{2})}{{(2 y - 1)}^{3}} - 1)}$

Step 19.13.4.1.4

Rewrite $- 1 y$ as $- y$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{(y - 1) (y^{2} - y - y - 1 \cdot - 1 - (y - 1) (2 y - 1) + {(2 y - 1)}^{2})}{{(2 y - 1)}^{3}} - 1)}$

Step 19.13.4.1.5

Multiply $- 1$ by $- 1$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{(y - 1) (y^{2} - y - y + 1 - (y - 1) (2 y - 1) + {(2 y - 1)}^{2})}{{(2 y - 1)}^{3}} - 1)}$

Step 19.13.4.2

Subtract $y$ from $- y$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{(y - 1) (y^{2} - 2 y + 1 - (y - 1) (2 y - 1) + {(2 y - 1)}^{2})}{{(2 y - 1)}^{3}} - 1)}$

Step 19.13.5

Apply the distributive property.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{(y - 1) (y^{2} - 2 y + 1 + (- y + 1) (2 y - 1) + {(2 y - 1)}^{2})}{{(2 y - 1)}^{3}} - 1)}$

Step 19.13.6

Multiply $- 1$ by $- 1$ .

Step 19.13.7

Expand $(- y + 1) (2 y - 1)$ using the FOIL Method.

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Step 19.13.7.1

Apply the distributive property.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{(y - 1) (y^{2} - 2 y + 1 - y (2 y - 1) + 1 (2 y - 1) + {(2 y - 1)}^{2})}{{(2 y - 1)}^{3}} - 1)}$

Step 19.13.7.2

Apply the distributive property.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{(y - 1) (y^{2} - 2 y + 1 - y (2 y) - y \cdot - 1 + 1 (2 y - 1) + {(2 y - 1)}^{2})}{{(2 y - 1)}^{3}} - 1)}$

Step 19.13.7.3

Apply the distributive property.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{(y - 1) (y^{2} - 2 y + 1 - y (2 y) - y \cdot - 1 + 1 (2 y) + 1 \cdot - 1 + {(2 y - 1)}^{2})}{{(2 y - 1)}^{3}} - 1)}$

Step 19.13.8

Simplify and combine like terms.

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Step 19.13.8.1

Simplify each term.

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Step 19.13.8.1.1

Rewrite using the commutative property of multiplication.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{(y - 1) (y^{2} - 2 y + 1 - 1 \cdot (2 y \cdot y) - y \cdot - 1 + 1 (2 y) + 1 \cdot - 1 + {(2 y - 1)}^{2})}{{(2 y - 1)}^{3}} - 1)}$

Step 19.13.8.1.2

Multiply $y$ by $y$ by adding the exponents.

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Step 19.13.8.1.2.1

Move $y$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{(y - 1) (y^{2} - 2 y + 1 - 1 \cdot (2 (y \cdot y)) - y \cdot - 1 + 1 (2 y) + 1 \cdot - 1 + {(2 y - 1)}^{2})}{{(2 y - 1)}^{3}} - 1)}$

Step 19.13.8.1.2.2

Multiply $y$ by $y$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{(y - 1) (y^{2} - 2 y + 1 - 1 \cdot (2 y^{2}) - y \cdot - 1 + 1 (2 y) + 1 \cdot - 1 + {(2 y - 1)}^{2})}{{(2 y - 1)}^{3}} - 1)}$

Step 19.13.8.1.3

Multiply $- 1$ by $2$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{(y - 1) (y^{2} - 2 y + 1 - 2 y^{2} - y \cdot - 1 + 1 (2 y) + 1 \cdot - 1 + {(2 y - 1)}^{2})}{{(2 y - 1)}^{3}} - 1)}$

Step 19.13.8.1.4

Multiply $- y \cdot - 1$ .

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Step 19.13.8.1.4.1

Multiply $- 1$ by $- 1$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{(y - 1) (y^{2} - 2 y + 1 - 2 y^{2} + 1 y + 1 (2 y) + 1 \cdot - 1 + {(2 y - 1)}^{2})}{{(2 y - 1)}^{3}} - 1)}$

Step 19.13.8.1.4.2

Multiply $y$ by $1$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{(y - 1) (y^{2} - 2 y + 1 - 2 y^{2} + y + 1 (2 y) + 1 \cdot - 1 + {(2 y - 1)}^{2})}{{(2 y - 1)}^{3}} - 1)}$

Step 19.13.8.1.5

Multiply $2 y$ by $1$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{(y - 1) (y^{2} - 2 y + 1 - 2 y^{2} + y + 2 y + 1 \cdot - 1 + {(2 y - 1)}^{2})}{{(2 y - 1)}^{3}} - 1)}$

Step 19.13.8.1.6

Multiply $- 1$ by $1$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{(y - 1) (y^{2} - 2 y + 1 - 2 y^{2} + y + 2 y - 1 + {(2 y - 1)}^{2})}{{(2 y - 1)}^{3}} - 1)}$

Step 19.13.8.2

Add $y$ and $2 y$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{(y - 1) (y^{2} - 2 y + 1 - 2 y^{2} + 3 y - 1 + {(2 y - 1)}^{2})}{{(2 y - 1)}^{3}} - 1)}$

Step 19.13.9

Rewrite ${(2 y - 1)}^{2}$ as $(2 y - 1) (2 y - 1)$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{(y - 1) (y^{2} - 2 y + 1 - 2 y^{2} + 3 y - 1 + (2 y - 1) (2 y - 1))}{{(2 y - 1)}^{3}} - 1)}$

Step 19.13.10

Expand $(2 y - 1) (2 y - 1)$ using the FOIL Method.

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Step 19.13.10.1

Apply the distributive property.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{(y - 1) (y^{2} - 2 y + 1 - 2 y^{2} + 3 y - 1 + 2 y (2 y - 1) - 1 (2 y - 1))}{{(2 y - 1)}^{3}} - 1)}$

Step 19.13.10.2

Apply the distributive property.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{(y - 1) (y^{2} - 2 y + 1 - 2 y^{2} + 3 y - 1 + 2 y (2 y) + 2 y \cdot - 1 - 1 (2 y - 1))}{{(2 y - 1)}^{3}} - 1)}$

Step 19.13.10.3

Apply the distributive property.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{(y - 1) (y^{2} - 2 y + 1 - 2 y^{2} + 3 y - 1 + 2 y (2 y) + 2 y \cdot - 1 - 1 (2 y) - 1 \cdot - 1)}{{(2 y - 1)}^{3}} - 1)}$

Step 19.13.11

Simplify and combine like terms.

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Step 19.13.11.1

Simplify each term.

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Step 19.13.11.1.1

Rewrite using the commutative property of multiplication.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{(y - 1) (y^{2} - 2 y + 1 - 2 y^{2} + 3 y - 1 + 2 \cdot (2 y \cdot y) + 2 y \cdot - 1 - 1 (2 y) - 1 \cdot - 1)}{{(2 y - 1)}^{3}} - 1)}$

Step 19.13.11.1.2

Multiply $y$ by $y$ by adding the exponents.

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Step 19.13.11.1.2.1

Move $y$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{(y - 1) (y^{2} - 2 y + 1 - 2 y^{2} + 3 y - 1 + 2 \cdot (2 (y \cdot y)) + 2 y \cdot - 1 - 1 (2 y) - 1 \cdot - 1)}{{(2 y - 1)}^{3}} - 1)}$

Step 19.13.11.1.2.2

Multiply $y$ by $y$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{(y - 1) (y^{2} - 2 y + 1 - 2 y^{2} + 3 y - 1 + 2 \cdot (2 y^{2}) + 2 y \cdot - 1 - 1 (2 y) - 1 \cdot - 1)}{{(2 y - 1)}^{3}} - 1)}$

Step 19.13.11.1.3

Multiply $2$ by $2$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{(y - 1) (y^{2} - 2 y + 1 - 2 y^{2} + 3 y - 1 + 4 y^{2} + 2 y \cdot - 1 - 1 (2 y) - 1 \cdot - 1)}{{(2 y - 1)}^{3}} - 1)}$

Step 19.13.11.1.4

Multiply $- 1$ by $2$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{(y - 1) (y^{2} - 2 y + 1 - 2 y^{2} + 3 y - 1 + 4 y^{2} - 2 y - 1 (2 y) - 1 \cdot - 1)}{{(2 y - 1)}^{3}} - 1)}$

Step 19.13.11.1.5

Multiply $2$ by $- 1$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{(y - 1) (y^{2} - 2 y + 1 - 2 y^{2} + 3 y - 1 + 4 y^{2} - 2 y - 2 y - 1 \cdot - 1)}{{(2 y - 1)}^{3}} - 1)}$

Step 19.13.11.1.6

Multiply $- 1$ by $- 1$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{(y - 1) (y^{2} - 2 y + 1 - 2 y^{2} + 3 y - 1 + 4 y^{2} - 2 y - 2 y + 1)}{{(2 y - 1)}^{3}} - 1)}$

Step 19.13.11.2

Subtract $2 y$ from $- 2 y$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{(y - 1) (y^{2} - 2 y + 1 - 2 y^{2} + 3 y - 1 + 4 y^{2} - 4 y + 1)}{{(2 y - 1)}^{3}} - 1)}$

Step 19.13.12

Subtract $2 y^{2}$ from $y^{2}$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{(y - 1) (- y^{2} - 2 y + 1 + 3 y - 1 + 4 y^{2} - 4 y + 1)}{{(2 y - 1)}^{3}} - 1)}$

Step 19.13.13

Add $- y^{2}$ and $4 y^{2}$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{(y - 1) (3 y^{2} - 2 y + 1 + 3 y - 1 - 4 y + 1)}{{(2 y - 1)}^{3}} - 1)}$

Step 19.13.14

Add $- 2 y$ and $3 y$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{(y - 1) (3 y^{2} + y + 1 - 1 - 4 y + 1)}{{(2 y - 1)}^{3}} - 1)}$

Step 19.13.15

Subtract $4 y$ from $y$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{(y - 1) (3 y^{2} - 3 y + 1 - 1 + 1)}{{(2 y - 1)}^{3}} - 1)}$

Step 19.13.16

Subtract $1$ from $1$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{(y - 1) (3 y^{2} - 3 y + 0 + 1)}{{(2 y - 1)}^{3}} - 1)}$

Step 19.13.17

Add $3 y^{2}$ and $0$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{(y - 1) (3 y^{2} - 3 y + 1)}{{(2 y - 1)}^{3}} - 1)}$

Step 19.14

To write $- 1$ as a fraction with a common denominator, multiply by $\frac{{(2 y - 1)}^{3}}{{(2 y - 1)}^{3}}$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{(y - 1) (3 y^{2} - 3 y + 1)}{{(2 y - 1)}^{3}} - 1 \cdot \frac{{(2 y - 1)}^{3}}{{(2 y - 1)}^{3}})}$

Step 19.15

Combine $- 1$ and $\frac{{(2 y - 1)}^{3}}{{(2 y - 1)}^{3}}$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{(y - 1) (3 y^{2} - 3 y + 1)}{{(2 y - 1)}^{3}} + \frac{- {(2 y - 1)}^{3}}{{(2 y - 1)}^{3}})}$

Step 19.16

Combine the numerators over the common denominator.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{(y - 1) (3 y^{2} - 3 y + 1) - {(2 y - 1)}^{3}}{{(2 y - 1)}^{3}})}$

Step 19.17

Simplify the numerator.

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Step 19.17.1

Expand $(y - 1) (3 y^{2} - 3 y + 1)$ by multiplying each term in the first expression by each term in the second expression.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{y (3 y^{2}) + y (- 3 y) + y \cdot 1 - 1 (3 y^{2}) - 1 (- 3 y) - 1 \cdot 1 - {(2 y - 1)}^{3}}{{(2 y - 1)}^{3}})}$

Step 19.17.2

Simplify each term.

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Step 19.17.2.1

Rewrite using the commutative property of multiplication.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{3 y \cdot y^{2} + y (- 3 y) + y \cdot 1 - 1 (3 y^{2}) - 1 (- 3 y) - 1 \cdot 1 - {(2 y - 1)}^{3}}{{(2 y - 1)}^{3}})}$

Step 19.17.2.2

Multiply $y$ by $y^{2}$ by adding the exponents.

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Step 19.17.2.2.1

Move $y^{2}$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{3 (y^{2} y) + y (- 3 y) + y \cdot 1 - 1 (3 y^{2}) - 1 (- 3 y) - 1 \cdot 1 - {(2 y - 1)}^{3}}{{(2 y - 1)}^{3}})}$

Step 19.17.2.2.2

Multiply $y^{2}$ by $y$ .

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Step 19.17.2.2.2.1

Raise $y$ to the power of $1$ .

Step 19.17.2.2.2.2

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{3 y^{2 + 1} + y (- 3 y) + y \cdot 1 - 1 (3 y^{2}) - 1 (- 3 y) - 1 \cdot 1 - {(2 y - 1)}^{3}}{{(2 y - 1)}^{3}})}$

Step 19.17.2.2.3

Add $2$ and $1$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{3 y^{3} + y (- 3 y) + y \cdot 1 - 1 (3 y^{2}) - 1 (- 3 y) - 1 \cdot 1 - {(2 y - 1)}^{3}}{{(2 y - 1)}^{3}})}$

Step 19.17.2.3

Rewrite using the commutative property of multiplication.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{3 y^{3} - 3 y \cdot y + y \cdot 1 - 1 (3 y^{2}) - 1 (- 3 y) - 1 \cdot 1 - {(2 y - 1)}^{3}}{{(2 y - 1)}^{3}})}$

Step 19.17.2.4

Multiply $y$ by $y$ by adding the exponents.

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Step 19.17.2.4.1

Move $y$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{3 y^{3} - 3 (y \cdot y) + y \cdot 1 - 1 (3 y^{2}) - 1 (- 3 y) - 1 \cdot 1 - {(2 y - 1)}^{3}}{{(2 y - 1)}^{3}})}$

Step 19.17.2.4.2

Multiply $y$ by $y$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{3 y^{3} - 3 y^{2} + y \cdot 1 - 1 (3 y^{2}) - 1 (- 3 y) - 1 \cdot 1 - {(2 y - 1)}^{3}}{{(2 y - 1)}^{3}})}$

Step 19.17.2.5

Multiply $y$ by $1$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{3 y^{3} - 3 y^{2} + y - 1 (3 y^{2}) - 1 (- 3 y) - 1 \cdot 1 - {(2 y - 1)}^{3}}{{(2 y - 1)}^{3}})}$

Step 19.17.2.6

Multiply $3$ by $- 1$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{3 y^{3} - 3 y^{2} + y - 3 y^{2} - 1 (- 3 y) - 1 \cdot 1 - {(2 y - 1)}^{3}}{{(2 y - 1)}^{3}})}$

Step 19.17.2.7

Multiply $- 3$ by $- 1$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{3 y^{3} - 3 y^{2} + y - 3 y^{2} + 3 y - 1 \cdot 1 - {(2 y - 1)}^{3}}{{(2 y - 1)}^{3}})}$

Step 19.17.2.8

Multiply $- 1$ by $1$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{3 y^{3} - 3 y^{2} + y - 3 y^{2} + 3 y - 1 - {(2 y - 1)}^{3}}{{(2 y - 1)}^{3}})}$

Step 19.17.3

Subtract $3 y^{2}$ from $- 3 y^{2}$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{3 y^{3} - 6 y^{2} + y + 3 y - 1 - {(2 y - 1)}^{3}}{{(2 y - 1)}^{3}})}$

Step 19.17.4

Add $y$ and $3 y$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{3 y^{3} - 6 y^{2} + 4 y - 1 - {(2 y - 1)}^{3}}{{(2 y - 1)}^{3}})}$

Step 19.17.5

Use the Binomial Theorem.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{3 y^{3} - 6 y^{2} + 4 y - 1 - ({(2 y)}^{3} + 3 {(2 y)}^{2} \cdot - 1 + 3 (2 y) {(- 1)}^{2} + {(- 1)}^{3})}{{(2 y - 1)}^{3}})}$

Step 19.17.6

Simplify each term.

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Step 19.17.6.1

Apply the product rule to $2 y$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{3 y^{3} - 6 y^{2} + 4 y - 1 - (2^{3} y^{3} + 3 {(2 y)}^{2} \cdot - 1 + 3 (2 y) {(- 1)}^{2} + {(- 1)}^{3})}{{(2 y - 1)}^{3}})}$

Step 19.17.6.2

Raise $2$ to the power of $3$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{3 y^{3} - 6 y^{2} + 4 y - 1 - (8 y^{3} + 3 {(2 y)}^{2} \cdot - 1 + 3 (2 y) {(- 1)}^{2} + {(- 1)}^{3})}{{(2 y - 1)}^{3}})}$

Step 19.17.6.3

Apply the product rule to $2 y$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{3 y^{3} - 6 y^{2} + 4 y - 1 - (8 y^{3} + 3 (2^{2} y^{2}) \cdot - 1 + 3 (2 y) {(- 1)}^{2} + {(- 1)}^{3})}{{(2 y - 1)}^{3}})}$

Step 19.17.6.4

Raise $2$ to the power of $2$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{3 y^{3} - 6 y^{2} + 4 y - 1 - (8 y^{3} + 3 (4 y^{2}) \cdot - 1 + 3 (2 y) {(- 1)}^{2} + {(- 1)}^{3})}{{(2 y - 1)}^{3}})}$

Step 19.17.6.5

Multiply $4$ by $3$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{3 y^{3} - 6 y^{2} + 4 y - 1 - (8 y^{3} + 12 y^{2} \cdot - 1 + 3 (2 y) {(- 1)}^{2} + {(- 1)}^{3})}{{(2 y - 1)}^{3}})}$

Step 19.17.6.6

Multiply $- 1$ by $12$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{3 y^{3} - 6 y^{2} + 4 y - 1 - (8 y^{3} - 12 y^{2} + 3 (2 y) {(- 1)}^{2} + {(- 1)}^{3})}{{(2 y - 1)}^{3}})}$

Step 19.17.6.7

Multiply $2$ by $3$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{3 y^{3} - 6 y^{2} + 4 y - 1 - (8 y^{3} - 12 y^{2} + 6 y {(- 1)}^{2} + {(- 1)}^{3})}{{(2 y - 1)}^{3}})}$

Step 19.17.6.8

Raise $- 1$ to the power of $2$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{3 y^{3} - 6 y^{2} + 4 y - 1 - (8 y^{3} - 12 y^{2} + 6 y \cdot 1 + {(- 1)}^{3})}{{(2 y - 1)}^{3}})}$

Step 19.17.6.9

Multiply $6$ by $1$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{3 y^{3} - 6 y^{2} + 4 y - 1 - (8 y^{3} - 12 y^{2} + 6 y + {(- 1)}^{3})}{{(2 y - 1)}^{3}})}$

Step 19.17.6.10

Raise $- 1$ to the power of $3$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{3 y^{3} - 6 y^{2} + 4 y - 1 - (8 y^{3} - 12 y^{2} + 6 y - 1)}{{(2 y - 1)}^{3}})}$

Step 19.17.7

Apply the distributive property.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{3 y^{3} - 6 y^{2} + 4 y - 1 - (8 y^{3}) - (- 12 y^{2}) - (6 y) + 1}{{(2 y - 1)}^{3}})}$

Step 19.17.8

Simplify.

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Step 19.17.8.1

Multiply $8$ by $- 1$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{3 y^{3} - 6 y^{2} + 4 y - 1 - 8 y^{3} - (- 12 y^{2}) - (6 y) + 1}{{(2 y - 1)}^{3}})}$

Step 19.17.8.2

Multiply $- 12$ by $- 1$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{3 y^{3} - 6 y^{2} + 4 y - 1 - 8 y^{3} + 12 y^{2} - (6 y) + 1}{{(2 y - 1)}^{3}})}$

Step 19.17.8.3

Multiply $6$ by $- 1$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{3 y^{3} - 6 y^{2} + 4 y - 1 - 8 y^{3} + 12 y^{2} - 6 y + 1}{{(2 y - 1)}^{3}})}$

Step 19.17.8.4

Multiply $- 1$ by $- 1$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{3 y^{3} - 6 y^{2} + 4 y - 1 - 8 y^{3} + 12 y^{2} - 6 y + 1}{{(2 y - 1)}^{3}})}$

Step 19.17.9

Subtract $8 y^{3}$ from $3 y^{3}$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{- 5 y^{3} - 6 y^{2} + 4 y - 1 + 12 y^{2} - 6 y + 1}{{(2 y - 1)}^{3}})}$

Step 19.17.10

Add $- 6 y^{2}$ and $12 y^{2}$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{- 5 y^{3} + 6 y^{2} + 4 y - 1 - 6 y + 1}{{(2 y - 1)}^{3}})}$

Step 19.17.11

Subtract $6 y$ from $4 y$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{- 5 y^{3} + 6 y^{2} - 2 y - 1 + 1}{{(2 y - 1)}^{3}})}$

Step 19.17.12

Add $- 1$ and $1$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{- 5 y^{3} + 6 y^{2} - 2 y + 0}{{(2 y - 1)}^{3}})}$

Step 19.17.13

Add $- 5 y^{3} + 6 y^{2} - 2 y$ and $0$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{- 5 y^{3} + 6 y^{2} - 2 y}{{(2 y - 1)}^{3}})}$

Step 19.17.14

Factor $y$ out of $- 5 y^{3} + 6 y^{2} - 2 y$ .

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Step 19.17.14.1

Factor $y$ out of $- 5 y^{3}$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{y (- 5 y^{2}) + 6 y^{2} - 2 y}{{(2 y - 1)}^{3}})}$

Step 19.17.14.2

Factor $y$ out of $6 y^{2}$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{y (- 5 y^{2}) + y (6 y) - 2 y}{{(2 y - 1)}^{3}})}$

Step 19.17.14.3

Factor $y$ out of $- 2 y$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{y (- 5 y^{2}) + y (6 y) + y \cdot - 2}{{(2 y - 1)}^{3}})}$

Step 19.17.14.4

Factor $y$ out of $y (- 5 y^{2}) + y (6 y)$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{y (- 5 y^{2} + 6 y) + y \cdot - 2}{{(2 y - 1)}^{3}})}$

Step 19.17.14.5

Factor $y$ out of $y (- 5 y^{2} + 6 y) + y \cdot - 2$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{{(2 y - 1)}^{2} (\frac{y (- 5 y^{2} + 6 y - 2)}{{(2 y - 1)}^{3}})}$

Step 20

Simplify terms.

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Step 20.1

Combine ${(2 y - 1)}^{2}$ and $\frac{y (- 5 y^{2} + 6 y - 2)}{{(2 y - 1)}^{3}}$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{\frac{{(2 y - 1)}^{2} (y (- 5 y^{2} + 6 y - 2))}{{(2 y - 1)}^{3}}}$

Step 20.2

Reduce the expression $\frac{{(2 y - 1)}^{2} y (- 5 y^{2} + 6 y - 2)}{{(2 y - 1)}^{3}}$ by cancelling the common factors.

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Step 20.2.1

Factor ${(2 y - 1)}^{2}$ out of ${(2 y - 1)}^{3}$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{\frac{{(2 y - 1)}^{2} (y (- 5 y^{2} + 6 y - 2))}{{(2 y - 1)}^{2} (2 y - 1)}}$

Step 20.2.2

Cancel the common factor.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{\frac{{(2 y - 1)}^{2} (y (- 5 y^{2} + 6 y - 2))}{{(2 y - 1)}^{2} (2 y - 1)}}$

Step 20.2.3

Rewrite the expression.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- \frac{5 y^{2} - 6 y + 2}{2 y - 1}}{\frac{y (- 5 y^{2} + 6 y - 2)}{2 y - 1}}$

Step 21

Multiply the numerator by the reciprocal of the denominator.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = - \frac{5 y^{2} - 6 y + 2}{2 y - 1} \cdot \frac{2 y - 1}{y (- 5 y^{2} + 6 y - 2)}$

Step 22

Cancel the common factor of $2 y - 1$ .

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Step 22.1

Move the leading negative in $- \frac{5 y^{2} - 6 y + 2}{2 y - 1}$ into the numerator.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- (5 y^{2} - 6 y + 2)}{2 y - 1} \cdot \frac{2 y - 1}{y (- 5 y^{2} + 6 y - 2)}$

Step 22.2

Cancel the common factor.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{- (5 y^{2} - 6 y + 2)}{2 y - 1} \cdot \frac{2 y - 1}{y (- 5 y^{2} + 6 y - 2)}$

Step 22.3

Rewrite the expression.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = - (5 y^{2} - 6 y + 2) \frac{1}{y (- 5 y^{2} + 6 y - 2)}$

Step 23

Apply the distributive property.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = (- (5 y^{2}) - (- 6 y) - 1 \cdot 2) (\frac{1}{y (- 5 y^{2} + 6 y - 2)})$

Step 24

Simplify.

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Step 24.1

Multiply $5$ by $- 1$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = (- 5 y^{2} - (- 6 y) - 1 \cdot 2) (\frac{1}{y (- 5 y^{2} + 6 y - 2)})$

Step 24.2

Multiply $- 6$ by $- 1$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = (- 5 y^{2} + 6 y - 1 \cdot 2) (\frac{1}{y (- 5 y^{2} + 6 y - 2)})$

Step 24.3

Multiply $- 1$ by $2$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = (- 5 y^{2} + 6 y - 2) (\frac{1}{y (- 5 y^{2} + 6 y - 2)})$

Step 25

Cancel the common factor of $- 5 y^{2} + 6 y - 2$ .

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Step 25.1

Factor $- 5 y^{2} + 6 y - 2$ out of $y (- 5 y^{2} + 6 y - 2)$ .

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = (- 5 y^{2} + 6 y - 2) (\frac{1}{(- 5 y^{2} + 6 y - 2) y})$

Step 25.2

Cancel the common factor.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = (- 5 y^{2} + 6 y - 2) (\frac{1}{(- 5 y^{2} + 6 y - 2) y})$

Step 25.3

Rewrite the expression.

$f (\frac{2 y^{2} - 3 y + 1}{4 y^{2} - 4 y + 1}) = \frac{1}{y}$