Algebra Examples

$\frac{3 x + 2 y}{x^{2} + 3 x y - 10 y^{2}} - \frac{5 x + y}{x^{2} + 4 x y - 5 y^{2}} + \frac{4 x - y}{x^{2} - 3 x y + 2 y^{2}}$

Step 1

Simplify each term.

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Step 1.1

Factor by grouping.

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Step 1.1.1

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 $a \cdot c = 1 \cdot - 10 = - 10$ and whose sum is $b = 3$ .

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Step 1.1.1.1

Reorder terms.

$\frac{3 x + 2 y}{x^{2} - 10 y^{2} + 3 x y} - \frac{5 x + y}{x^{2} + 4 x y - 5 y^{2}} + \frac{4 x - y}{x^{2} - 3 x y + 2 y^{2}}$

Step 1.1.1.2

Reorder $- 10 y^{2}$ and $3 x y$ .

$\frac{3 x + 2 y}{x^{2} + 3 x y - 10 y^{2}} - \frac{5 x + y}{x^{2} + 4 x y - 5 y^{2}} + \frac{4 x - y}{x^{2} - 3 x y + 2 y^{2}}$

Step 1.1.1.3

Factor $3$ out of $3 x y$ .

$\frac{3 x + 2 y}{x^{2} + 3 (x y) - 10 y^{2}} - \frac{5 x + y}{x^{2} + 4 x y - 5 y^{2}} + \frac{4 x - y}{x^{2} - 3 x y + 2 y^{2}}$

Step 1.1.1.4

Rewrite $3$ as $- 2$ plus $5$

$\frac{3 x + 2 y}{x^{2} + (- 2 + 5) (x y) - 10 y^{2}} - \frac{5 x + y}{x^{2} + 4 x y - 5 y^{2}} + \frac{4 x - y}{x^{2} - 3 x y + 2 y^{2}}$

Step 1.1.1.5

Apply the distributive property.

$\frac{3 x + 2 y}{x^{2} - 2 (x y) + 5 (x y) - 10 y^{2}} - \frac{5 x + y}{x^{2} + 4 x y - 5 y^{2}} + \frac{4 x - y}{x^{2} - 3 x y + 2 y^{2}}$

Step 1.1.1.6

Move parentheses.

$\frac{3 x + 2 y}{x^{2} - 2 x y + 5 x y - 10 y^{2}} - \frac{5 x + y}{x^{2} + 4 x y - 5 y^{2}} + \frac{4 x - y}{x^{2} - 3 x y + 2 y^{2}}$

Step 1.1.2

Factor out the greatest common factor from each group.

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Step 1.1.2.1

Group the first two terms and the last two terms.

$\frac{3 x + 2 y}{(x^{2} - 2 x y) + 5 x y - 10 y^{2}} - \frac{5 x + y}{x^{2} + 4 x y - 5 y^{2}} + \frac{4 x - y}{x^{2} - 3 x y + 2 y^{2}}$

Step 1.1.2.2

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

$\frac{3 x + 2 y}{x (x - 2 y) + 5 y (x - 2 y)} - \frac{5 x + y}{x^{2} + 4 x y - 5 y^{2}} + \frac{4 x - y}{x^{2} - 3 x y + 2 y^{2}}$

Step 1.1.3

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

$\frac{3 x + 2 y}{(x - 2 y) (x + 5 y)} - \frac{5 x + y}{x^{2} + 4 x y - 5 y^{2}} + \frac{4 x - y}{x^{2} - 3 x y + 2 y^{2}}$

Step 1.2

Simplify the denominator.

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Step 1.2.1

Factor by grouping.

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Step 1.2.1.1

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 $a \cdot c = 1 \cdot - 5 = - 5$ and whose sum is $b = 4$ .

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Step 1.2.1.1.1

Reorder terms.

$\frac{3 x + 2 y}{(x - 2 y) (x + 5 y)} - \frac{5 x + y}{x^{2} - 5 y^{2} + 4 x y} + \frac{4 x - y}{x^{2} - 3 x y + 2 y^{2}}$

Step 1.2.1.1.2

Reorder $- 5 y^{2}$ and $4 x y$ .

$\frac{3 x + 2 y}{(x - 2 y) (x + 5 y)} - \frac{5 x + y}{x^{2} + 4 x y - 5 y^{2}} + \frac{4 x - y}{x^{2} - 3 x y + 2 y^{2}}$

Step 1.2.1.1.3

Factor $4$ out of $4 x y$ .

$\frac{3 x + 2 y}{(x - 2 y) (x + 5 y)} - \frac{5 x + y}{x^{2} + 4 (x y) - 5 y^{2}} + \frac{4 x - y}{x^{2} - 3 x y + 2 y^{2}}$

Step 1.2.1.1.4

Rewrite $4$ as $- 1$ plus $5$

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

Step 1.2.1.1.5

Apply the distributive property.

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

Step 1.2.1.1.6

Move parentheses.

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

Step 1.2.1.2

Factor out the greatest common factor from each group.

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Step 1.2.1.2.1

Group the first two terms and the last two terms.

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

Step 1.2.1.2.2

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

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

Step 1.2.1.3

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

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

Step 1.2.2

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

$\frac{3 x + 2 y}{(x - 2 y) (x + 5 y)} - \frac{5 x + y}{(x - y) (x + 5 y)} + \frac{4 x - y}{x^{2} - 3 x y + 2 y^{2}}$

Step 1.3

Simplify the denominator.

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Step 1.3.1

Factor by grouping.

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Step 1.3.1.1

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 $a \cdot c = 1 \cdot 2 = 2$ and whose sum is $b = - 3$ .

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Step 1.3.1.1.1

Reorder terms.

$\frac{3 x + 2 y}{(x - 2 y) (x + 5 y)} - \frac{5 x + y}{(x - y) (x + 5 y)} + \frac{4 x - y}{x^{2} + 2 y^{2} - 3 x y}$

Step 1.3.1.1.2

Reorder $2 y^{2}$ and $- 3 x y$ .

$\frac{3 x + 2 y}{(x - 2 y) (x + 5 y)} - \frac{5 x + y}{(x - y) (x + 5 y)} + \frac{4 x - y}{x^{2} - 3 x y + 2 y^{2}}$

Step 1.3.1.1.3

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

$\frac{3 x + 2 y}{(x - 2 y) (x + 5 y)} - \frac{5 x + y}{(x - y) (x + 5 y)} + \frac{4 x - y}{x^{2} - 3 (x y) + 2 y^{2}}$

Step 1.3.1.1.4

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

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

Step 1.3.1.1.5

Apply the distributive property.

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

Step 1.3.1.1.6

Move parentheses.

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

Step 1.3.1.2

Factor out the greatest common factor from each group.

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Step 1.3.1.2.1

Group the first two terms and the last two terms.

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

Step 1.3.1.2.2

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

$\frac{3 x + 2 y}{(x - 2 y) (x + 5 y)} - \frac{5 x + y}{(x - y) (x + 5 y)} + \frac{4 x - y}{x (x - 1 y) - 2 y (x - y)}$

Step 1.3.1.3

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

$\frac{3 x + 2 y}{(x - 2 y) (x + 5 y)} - \frac{5 x + y}{(x - y) (x + 5 y)} + \frac{4 x - y}{(x - 1 y) (x - 2 y)}$

Step 1.3.2

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

$\frac{3 x + 2 y}{(x - 2 y) (x + 5 y)} - \frac{5 x + y}{(x - y) (x + 5 y)} + \frac{4 x - y}{(x - y) (x - 2 y)}$

Step 2

To write $\frac{3 x + 2 y}{(x - 2 y) (x + 5 y)}$ as a fraction with a common denominator, multiply by $\frac{x - y}{x - y}$ .

$\frac{3 x + 2 y}{(x - 2 y) (x + 5 y)} \cdot \frac{x - y}{x - y} - \frac{5 x + y}{(x - y) (x + 5 y)} + \frac{4 x - y}{(x - y) (x - 2 y)}$

Step 3

To write $- \frac{5 x + y}{(x - y) (x + 5 y)}$ as a fraction with a common denominator, multiply by $\frac{x - 2 y}{x - 2 y}$ .

$\frac{3 x + 2 y}{(x - 2 y) (x + 5 y)} \cdot \frac{x - y}{x - y} - \frac{5 x + y}{(x - y) (x + 5 y)} \cdot \frac{x - 2 y}{x - 2 y} + \frac{4 x - y}{(x - y) (x - 2 y)}$

Step 4

Write each expression with a common denominator of $(x - 2 y) (x + 5 y) (x - y)$ , by multiplying each by an appropriate factor of $1$ .

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Step 4.1

Multiply $\frac{3 x + 2 y}{(x - 2 y) (x + 5 y)}$ by $\frac{x - y}{x - y}$ .

$\frac{(3 x + 2 y) (x - y)}{(x - 2 y) (x + 5 y) (x - y)} - \frac{5 x + y}{(x - y) (x + 5 y)} \cdot \frac{x - 2 y}{x - 2 y} + \frac{4 x - y}{(x - y) (x - 2 y)}$

Step 4.2

Multiply $\frac{5 x + y}{(x - y) (x + 5 y)}$ by $\frac{x - 2 y}{x - 2 y}$ .

$\frac{(3 x + 2 y) (x - y)}{(x - 2 y) (x + 5 y) (x - y)} - \frac{(5 x + y) (x - 2 y)}{(x - y) (x + 5 y) (x - 2 y)} + \frac{4 x - y}{(x - y) (x - 2 y)}$

Step 4.3

Reorder the factors of $(x - 2 y) (x + 5 y) (x - y)$ .

$\frac{(3 x + 2 y) (x - y)}{(x + 5 y) (x - 2 y) (x - y)} - \frac{(5 x + y) (x - 2 y)}{(x - y) (x + 5 y) (x - 2 y)} + \frac{4 x - y}{(x - y) (x - 2 y)}$

Step 4.4

Reorder the factors of $(x - y) (x + 5 y) (x - 2 y)$ .

$\frac{(3 x + 2 y) (x - y)}{(x + 5 y) (x - 2 y) (x - y)} - \frac{(5 x + y) (x - 2 y)}{(x + 5 y) (x - 2 y) (x - y)} + \frac{4 x - y}{(x - y) (x - 2 y)}$

Step 5

Combine the numerators over the common denominator.

$\frac{(3 x + 2 y) (x - y) - (5 x + y) (x - 2 y)}{(x + 5 y) (x - 2 y) (x - y)} + \frac{4 x - y}{(x - y) (x - 2 y)}$

Step 6

Simplify the numerator.

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Step 6.1

Expand $(3 x + 2 y) (x - y)$ using the FOIL Method.

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Step 6.1.1

Apply the distributive property.

$\frac{3 x (x - y) + 2 y (x - y) - (5 x + y) (x - 2 y)}{(x + 5 y) (x - 2 y) (x - y)} + \frac{4 x - y}{(x - y) (x - 2 y)}$

Step 6.1.2

Apply the distributive property.

$\frac{3 x \cdot x + 3 x (- y) + 2 y (x - y) - (5 x + y) (x - 2 y)}{(x + 5 y) (x - 2 y) (x - y)} + \frac{4 x - y}{(x - y) (x - 2 y)}$

Step 6.1.3

Apply the distributive property.

$\frac{3 x \cdot x + 3 x (- y) + 2 y x + 2 y (- y) - (5 x + y) (x - 2 y)}{(x + 5 y) (x - 2 y) (x - y)} + \frac{4 x - y}{(x - y) (x - 2 y)}$

Step 6.2

Simplify and combine like terms.

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Step 6.2.1

Simplify each term.

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Step 6.2.1.1

Multiply $x$ by $x$ by adding the exponents.

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Step 6.2.1.1.1

Move $x$ .

$\frac{3 (x \cdot x) + 3 x (- y) + 2 y x + 2 y (- y) - (5 x + y) (x - 2 y)}{(x + 5 y) (x - 2 y) (x - y)} + \frac{4 x - y}{(x - y) (x - 2 y)}$

Step 6.2.1.1.2

Multiply $x$ by $x$ .

$\frac{3 x^{2} + 3 x (- y) + 2 y x + 2 y (- y) - (5 x + y) (x - 2 y)}{(x + 5 y) (x - 2 y) (x - y)} + \frac{4 x - y}{(x - y) (x - 2 y)}$

Step 6.2.1.2

Rewrite using the commutative property of multiplication.

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

Step 6.2.1.3

Multiply $3$ by $- 1$ .

$\frac{3 x^{2} - 3 x y + 2 y x + 2 y (- y) - (5 x + y) (x - 2 y)}{(x + 5 y) (x - 2 y) (x - y)} + \frac{4 x - y}{(x - y) (x - 2 y)}$

Step 6.2.1.4

Rewrite using the commutative property of multiplication.

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

Step 6.2.1.5

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

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Step 6.2.1.5.1

Move $y$ .

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

Step 6.2.1.5.2

Multiply $y$ by $y$ .

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

Step 6.2.1.6

Multiply $2$ by $- 1$ .

$\frac{3 x^{2} - 3 x y + 2 y x - 2 y^{2} - (5 x + y) (x - 2 y)}{(x + 5 y) (x - 2 y) (x - y)} + \frac{4 x - y}{(x - y) (x - 2 y)}$

Step 6.2.2

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

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Step 6.2.2.1

Move $y$ .

$\frac{3 x^{2} - 3 x y + 2 x y - 2 y^{2} - (5 x + y) (x - 2 y)}{(x + 5 y) (x - 2 y) (x - y)} + \frac{4 x - y}{(x - y) (x - 2 y)}$

Step 6.2.2.2

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

$\frac{3 x^{2} - x y - 2 y^{2} - (5 x + y) (x - 2 y)}{(x + 5 y) (x - 2 y) (x - y)} + \frac{4 x - y}{(x - y) (x - 2 y)}$

Step 6.3

Apply the distributive property.

$\frac{3 x^{2} - x y - 2 y^{2} + (- (5 x) - y) (x - 2 y)}{(x + 5 y) (x - 2 y) (x - y)} + \frac{4 x - y}{(x - y) (x - 2 y)}$

Step 6.4

Multiply $5$ by $- 1$ .

$\frac{3 x^{2} - x y - 2 y^{2} + (- 5 x - y) (x - 2 y)}{(x + 5 y) (x - 2 y) (x - y)} + \frac{4 x - y}{(x - y) (x - 2 y)}$

Step 6.5

Expand $(- 5 x - y) (x - 2 y)$ using the FOIL Method.

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Step 6.5.1

Apply the distributive property.

$\frac{3 x^{2} - x y - 2 y^{2} - 5 x (x - 2 y) - y (x - 2 y)}{(x + 5 y) (x - 2 y) (x - y)} + \frac{4 x - y}{(x - y) (x - 2 y)}$

Step 6.5.2

Apply the distributive property.

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

Step 6.5.3

Apply the distributive property.

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

Step 6.6

Simplify and combine like terms.

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Step 6.6.1

Simplify each term.

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Step 6.6.1.1

Multiply $x$ by $x$ by adding the exponents.

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Step 6.6.1.1.1

Move $x$ .

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

Step 6.6.1.1.2

Multiply $x$ by $x$ .

$\frac{3 x^{2} - x y - 2 y^{2} - 5 x^{2} - 5 x (- 2 y) - y x - y (- 2 y)}{(x + 5 y) (x - 2 y) (x - y)} + \frac{4 x - y}{(x - y) (x - 2 y)}$

Step 6.6.1.2

Rewrite using the commutative property of multiplication.

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

Step 6.6.1.3

Multiply $- 5$ by $- 2$ .

$\frac{3 x^{2} - x y - 2 y^{2} - 5 x^{2} + 10 x y - y x - y (- 2 y)}{(x + 5 y) (x - 2 y) (x - y)} + \frac{4 x - y}{(x - y) (x - 2 y)}$

Step 6.6.1.4

Rewrite using the commutative property of multiplication.

$\frac{3 x^{2} - x y - 2 y^{2} - 5 x^{2} + 10 x y - y x - 1 \cdot - 2 y \cdot y}{(x + 5 y) (x - 2 y) (x - y)} + \frac{4 x - y}{(x - y) (x - 2 y)}$

Step 6.6.1.5

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

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Step 6.6.1.5.1

Move $y$ .

$\frac{3 x^{2} - x y - 2 y^{2} - 5 x^{2} + 10 x y - y x - 1 \cdot - 2 (y \cdot y)}{(x + 5 y) (x - 2 y) (x - y)} + \frac{4 x - y}{(x - y) (x - 2 y)}$

Step 6.6.1.5.2

Multiply $y$ by $y$ .

$\frac{3 x^{2} - x y - 2 y^{2} - 5 x^{2} + 10 x y - y x - 1 \cdot - 2 y^{2}}{(x + 5 y) (x - 2 y) (x - y)} + \frac{4 x - y}{(x - y) (x - 2 y)}$

Step 6.6.1.6

Multiply $- 1$ by $- 2$ .

$\frac{3 x^{2} - x y - 2 y^{2} - 5 x^{2} + 10 x y - y x + 2 y^{2}}{(x + 5 y) (x - 2 y) (x - y)} + \frac{4 x - y}{(x - y) (x - 2 y)}$

Step 6.6.2

Subtract $y x$ from $10 x y$ .

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Step 6.6.2.1

Move $y$ .

$\frac{3 x^{2} - x y - 2 y^{2} - 5 x^{2} + 10 x y - 1 x y + 2 y^{2}}{(x + 5 y) (x - 2 y) (x - y)} + \frac{4 x - y}{(x - y) (x - 2 y)}$

Step 6.6.2.2

Subtract $x y$ from $10 x y$ .

$\frac{3 x^{2} - x y - 2 y^{2} - 5 x^{2} + 9 x y + 2 y^{2}}{(x + 5 y) (x - 2 y) (x - y)} + \frac{4 x - y}{(x - y) (x - 2 y)}$

Step 6.7

Subtract $5 x^{2}$ from $3 x^{2}$ .

$\frac{- 2 x^{2} - x y - 2 y^{2} + 9 x y + 2 y^{2}}{(x + 5 y) (x - 2 y) (x - y)} + \frac{4 x - y}{(x - y) (x - 2 y)}$

Step 6.8

Add $- x y$ and $9 x y$ .

$\frac{- 2 x^{2} - 2 y^{2} + 8 x y + 2 y^{2}}{(x + 5 y) (x - 2 y) (x - y)} + \frac{4 x - y}{(x - y) (x - 2 y)}$

Step 6.9

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

$\frac{- 2 x^{2} + 8 x y + 0}{(x + 5 y) (x - 2 y) (x - y)} + \frac{4 x - y}{(x - y) (x - 2 y)}$

Step 6.10

Add $- 2 x^{2} + 8 x y$ and $0$ .

$\frac{- 2 x^{2} + 8 x y}{(x + 5 y) (x - 2 y) (x - y)} + \frac{4 x - y}{(x - y) (x - 2 y)}$

Step 6.11

Factor $2 x$ out of $- 2 x^{2} + 8 x y$ .

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Step 6.11.1

Factor $2 x$ out of $- 2 x^{2}$ .

$\frac{2 x (- x) + 8 x y}{(x + 5 y) (x - 2 y) (x - y)} + \frac{4 x - y}{(x - y) (x - 2 y)}$

Step 6.11.2

Factor $2 x$ out of $8 x y$ .

$\frac{2 x (- x) + 2 x (4 y)}{(x + 5 y) (x - 2 y) (x - y)} + \frac{4 x - y}{(x - y) (x - 2 y)}$

Step 6.11.3

Factor $2 x$ out of $2 x (- x) + 2 x (4 y)$ .

$\frac{2 x (- x + 4 y)}{(x + 5 y) (x - 2 y) (x - y)} + \frac{4 x - y}{(x - y) (x - 2 y)}$

Step 7

To write $\frac{4 x - y}{(x - y) (x - 2 y)}$ as a fraction with a common denominator, multiply by $\frac{x + 5 y}{x + 5 y}$ .

$\frac{2 x (- x + 4 y)}{(x + 5 y) (x - 2 y) (x - y)} + \frac{4 x - y}{(x - y) (x - 2 y)} \cdot \frac{x + 5 y}{x + 5 y}$

Step 8

Write each expression with a common denominator of $(x + 5 y) (x - 2 y) (x - y)$ , by multiplying each by an appropriate factor of $1$ .

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Step 8.1

Multiply $\frac{4 x - y}{(x - y) (x - 2 y)}$ by $\frac{x + 5 y}{x + 5 y}$ .

$\frac{2 x (- x + 4 y)}{(x + 5 y) (x - 2 y) (x - y)} + \frac{(4 x - y) (x + 5 y)}{(x - y) (x - 2 y) (x + 5 y)}$

Step 8.2

Reorder the factors of $(x - y) (x - 2 y) (x + 5 y)$ .

$\frac{2 x (- x + 4 y)}{(x + 5 y) (x - 2 y) (x - y)} + \frac{(4 x - y) (x + 5 y)}{(x + 5 y) (x - 2 y) (x - y)}$

Step 9

Combine the numerators over the common denominator.

$\frac{2 x (- x + 4 y) + (4 x - y) (x + 5 y)}{(x + 5 y) (x - 2 y) (x - y)}$

Step 10

Simplify the numerator.

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Step 10.1

Apply the distributive property.

$\frac{2 x (- x) + 2 x (4 y) + (4 x - y) (x + 5 y)}{(x + 5 y) (x - 2 y) (x - y)}$

Step 10.2

Rewrite using the commutative property of multiplication.

$\frac{2 \cdot - 1 x \cdot x + 2 x (4 y) + (4 x - y) (x + 5 y)}{(x + 5 y) (x - 2 y) (x - y)}$

Step 10.3

Rewrite using the commutative property of multiplication.

$\frac{2 \cdot - 1 x \cdot x + 2 \cdot 4 x y + (4 x - y) (x + 5 y)}{(x + 5 y) (x - 2 y) (x - y)}$

Step 10.4

Simplify each term.

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Step 10.4.1

Multiply $x$ by $x$ by adding the exponents.

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Step 10.4.1.1

Move $x$ .

$\frac{2 \cdot - 1 (x \cdot x) + 2 \cdot 4 x y + (4 x - y) (x + 5 y)}{(x + 5 y) (x - 2 y) (x - y)}$

Step 10.4.1.2

Multiply $x$ by $x$ .

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

Step 10.4.2

Multiply $2$ by $- 1$ .

$\frac{- 2 x^{2} + 2 \cdot 4 x y + (4 x - y) (x + 5 y)}{(x + 5 y) (x - 2 y) (x - y)}$

Step 10.4.3

Multiply $2$ by $4$ .

$\frac{- 2 x^{2} + 8 x y + (4 x - y) (x + 5 y)}{(x + 5 y) (x - 2 y) (x - y)}$

Step 10.5

Expand $(4 x - y) (x + 5 y)$ using the FOIL Method.

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Step 10.5.1

Apply the distributive property.

$\frac{- 2 x^{2} + 8 x y + 4 x (x + 5 y) - y (x + 5 y)}{(x + 5 y) (x - 2 y) (x - y)}$

Step 10.5.2

Apply the distributive property.

$\frac{- 2 x^{2} + 8 x y + 4 x \cdot x + 4 x (5 y) - y (x + 5 y)}{(x + 5 y) (x - 2 y) (x - y)}$

Step 10.5.3

Apply the distributive property.

$\frac{- 2 x^{2} + 8 x y + 4 x \cdot x + 4 x (5 y) - y x - y (5 y)}{(x + 5 y) (x - 2 y) (x - y)}$

Step 10.6

Simplify and combine like terms.

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Step 10.6.1

Simplify each term.

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Step 10.6.1.1

Multiply $x$ by $x$ by adding the exponents.

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Step 10.6.1.1.1

Move $x$ .

$\frac{- 2 x^{2} + 8 x y + 4 (x \cdot x) + 4 x (5 y) - y x - y (5 y)}{(x + 5 y) (x - 2 y) (x - y)}$

Step 10.6.1.1.2

Multiply $x$ by $x$ .

$\frac{- 2 x^{2} + 8 x y + 4 x^{2} + 4 x (5 y) - y x - y (5 y)}{(x + 5 y) (x - 2 y) (x - y)}$

Step 10.6.1.2

Rewrite using the commutative property of multiplication.

$\frac{- 2 x^{2} + 8 x y + 4 x^{2} + 4 \cdot 5 x y - y x - y (5 y)}{(x + 5 y) (x - 2 y) (x - y)}$

Step 10.6.1.3

Multiply $4$ by $5$ .

$\frac{- 2 x^{2} + 8 x y + 4 x^{2} + 20 x y - y x - y (5 y)}{(x + 5 y) (x - 2 y) (x - y)}$

Step 10.6.1.4

Rewrite using the commutative property of multiplication.

$\frac{- 2 x^{2} + 8 x y + 4 x^{2} + 20 x y - y x - 1 \cdot 5 y \cdot y}{(x + 5 y) (x - 2 y) (x - y)}$

Step 10.6.1.5

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

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Step 10.6.1.5.1

Move $y$ .

$\frac{- 2 x^{2} + 8 x y + 4 x^{2} + 20 x y - y x - 1 \cdot 5 (y \cdot y)}{(x + 5 y) (x - 2 y) (x - y)}$

Step 10.6.1.5.2

Multiply $y$ by $y$ .

$\frac{- 2 x^{2} + 8 x y + 4 x^{2} + 20 x y - y x - 1 \cdot 5 y^{2}}{(x + 5 y) (x - 2 y) (x - y)}$

Step 10.6.1.6

Multiply $- 1$ by $5$ .

$\frac{- 2 x^{2} + 8 x y + 4 x^{2} + 20 x y - y x - 5 y^{2}}{(x + 5 y) (x - 2 y) (x - y)}$

Step 10.6.2

Subtract $y x$ from $20 x y$ .

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Step 10.6.2.1

Move $y$ .

$\frac{- 2 x^{2} + 8 x y + 4 x^{2} + 20 x y - 1 x y - 5 y^{2}}{(x + 5 y) (x - 2 y) (x - y)}$

Step 10.6.2.2

Subtract $x y$ from $20 x y$ .

$\frac{- 2 x^{2} + 8 x y + 4 x^{2} + 19 x y - 5 y^{2}}{(x + 5 y) (x - 2 y) (x - y)}$

Step 10.7

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

$\frac{2 x^{2} + 8 x y + 19 x y - 5 y^{2}}{(x + 5 y) (x - 2 y) (x - y)}$

Step 10.8

Add $8 x y$ and $19 x y$ .

$\frac{2 x^{2} + 27 x y - 5 y^{2}}{(x + 5 y) (x - 2 y) (x - y)}$