Algebra Examples

$(- \frac{1}{4} y^{2 n} z^{5 n} - \frac{7}{8} y^{4 n} z^{2 n} - \frac{7}{4} y^{4 n}) \div (- \frac{3}{8} y^{4 n} z^{n})$

Step 1

Rewrite the division as a fraction.

$\frac{- \frac{1}{4} \cdot (y^{2 n} z^{5 n}) - \frac{7}{8} \cdot (y^{4 n} z^{2 n}) - \frac{7}{4} y^{4 n}}{- \frac{3}{8} \cdot (y^{4 n} z^{n})}$

Step 2

Simplify the numerator.

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Step 2.1

Combine $y^{2 n}$ and $\frac{1}{4}$ .

$\frac{- \frac{y^{2 n}}{4} z^{5 n} - \frac{7}{8} \cdot y^{4 n} z^{2 n} - \frac{7}{4} y^{4 n}}{- \frac{3}{8} \cdot y^{4 n} z^{n}}$

Step 2.2

Combine $z^{5 n}$ and $\frac{y^{2 n}}{4}$ .

$\frac{- \frac{z^{5 n} y^{2 n}}{4} - \frac{7}{8} \cdot y^{4 n} z^{2 n} - \frac{7}{4} y^{4 n}}{- \frac{3}{8} \cdot y^{4 n} z^{n}}$

Step 2.3

Combine $y^{4 n}$ and $\frac{7}{8}$ .

$\frac{- \frac{z^{5 n} y^{2 n}}{4} - \frac{y^{4 n} \cdot 7}{8} z^{2 n} - \frac{7}{4} y^{4 n}}{- \frac{3}{8} \cdot y^{4 n} z^{n}}$

Step 2.4

Move $7$ to the left of $y^{4 n}$ .

$\frac{- \frac{z^{5 n} y^{2 n}}{4} - \frac{7 \cdot y^{4 n}}{8} z^{2 n} - \frac{7}{4} y^{4 n}}{- \frac{3}{8} \cdot y^{4 n} z^{n}}$

Step 2.5

Combine $z^{2 n}$ and $\frac{7 y^{4 n}}{8}$ .

$\frac{- \frac{z^{5 n} y^{2 n}}{4} - \frac{z^{2 n} (7 y^{4 n})}{8} - \frac{7}{4} y^{4 n}}{- \frac{3}{8} \cdot y^{4 n} z^{n}}$

Step 2.6

Move $7$ to the left of $z^{2 n}$ .

$\frac{- \frac{z^{5 n} y^{2 n}}{4} - \frac{7 \cdot z^{2 n} y^{4 n}}{8} - \frac{7}{4} y^{4 n}}{- \frac{3}{8} \cdot y^{4 n} z^{n}}$

Step 2.7

Combine $y^{4 n}$ and $\frac{7}{4}$ .

$\frac{- \frac{z^{5 n} y^{2 n}}{4} - \frac{7 z^{2 n} y^{4 n}}{8} - \frac{y^{4 n} \cdot 7}{4}}{- \frac{3}{8} \cdot y^{4 n} z^{n}}$

Step 2.8

Move $7$ to the left of $y^{4 n}$ .

$\frac{- \frac{z^{5 n} y^{2 n}}{4} - \frac{7 z^{2 n} y^{4 n}}{8} - \frac{7 \cdot y^{4 n}}{4}}{- \frac{3}{8} \cdot y^{4 n} z^{n}}$

Step 2.9

To write $- \frac{z^{5 n} y^{2 n}}{4}$ as a fraction with a common denominator, multiply by $\frac{2}{2}$ .

$\frac{- \frac{z^{5 n} y^{2 n}}{4} \cdot \frac{2}{2} - \frac{7 z^{2 n} y^{4 n}}{8} - \frac{7 y^{4 n}}{4}}{- \frac{3}{8} \cdot y^{4 n} z^{n}}$

Step 2.10

Write each expression with a common denominator of $8$ , by multiplying each by an appropriate factor of $1$ .

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Step 2.10.1

Multiply $\frac{z^{5 n} y^{2 n}}{4}$ by $\frac{2}{2}$ .

$\frac{- \frac{z^{5 n} y^{2 n} \cdot 2}{4 \cdot 2} - \frac{7 z^{2 n} y^{4 n}}{8} - \frac{7 y^{4 n}}{4}}{- \frac{3}{8} \cdot y^{4 n} z^{n}}$

Step 2.10.2

Multiply $4$ by $2$ .

$\frac{- \frac{z^{5 n} y^{2 n} \cdot 2}{8} - \frac{7 z^{2 n} y^{4 n}}{8} - \frac{7 y^{4 n}}{4}}{- \frac{3}{8} \cdot y^{4 n} z^{n}}$

Step 2.11

Combine the numerators over the common denominator.

$\frac{\frac{- z^{5 n} y^{2 n} \cdot 2 - 7 z^{2 n} y^{4 n}}{8} - \frac{7 y^{4 n}}{4}}{- \frac{3}{8} \cdot y^{4 n} z^{n}}$

Step 2.12

To write $- \frac{7 y^{4 n}}{4}$ as a fraction with a common denominator, multiply by $\frac{2}{2}$ .

$\frac{\frac{- z^{5 n} y^{2 n} \cdot 2 - 7 z^{2 n} y^{4 n}}{8} - \frac{7 y^{4 n}}{4} \cdot \frac{2}{2}}{- \frac{3}{8} \cdot y^{4 n} z^{n}}$

Step 2.13

Write each expression with a common denominator of $8$ , by multiplying each by an appropriate factor of $1$ .

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Step 2.13.1

Multiply $\frac{7 y^{4 n}}{4}$ by $\frac{2}{2}$ .

$\frac{\frac{- z^{5 n} y^{2 n} \cdot 2 - 7 z^{2 n} y^{4 n}}{8} - \frac{7 y^{4 n} \cdot 2}{4 \cdot 2}}{- \frac{3}{8} \cdot y^{4 n} z^{n}}$

Step 2.13.2

Multiply $4$ by $2$ .

$\frac{\frac{- z^{5 n} y^{2 n} \cdot 2 - 7 z^{2 n} y^{4 n}}{8} - \frac{7 y^{4 n} \cdot 2}{8}}{- \frac{3}{8} \cdot y^{4 n} z^{n}}$

Step 2.14

Combine the numerators over the common denominator.

$\frac{\frac{- z^{5 n} y^{2 n} \cdot 2 - 7 z^{2 n} y^{4 n} - 7 y^{4 n} \cdot 2}{8}}{- \frac{3}{8} \cdot y^{4 n} z^{n}}$

Step 2.15

Rewrite $\frac{- z^{5 n} y^{2 n} \cdot 2 - 7 z^{2 n} y^{4 n} - 7 y^{4 n} \cdot 2}{8}$ in a factored form.

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Step 2.15.1

Multiply $2$ by $- 1$ .

$\frac{\frac{- 2 z^{5 n} y^{2 n} - 7 z^{2 n} y^{4 n} - 7 y^{4 n} \cdot 2}{8}}{- \frac{3}{8} \cdot y^{4 n} z^{n}}$

Step 2.15.2

Multiply $2$ by $- 7$ .

$\frac{\frac{- 2 z^{5 n} y^{2 n} - 7 z^{2 n} y^{4 n} - 14 y^{4 n}}{8}}{- \frac{3}{8} \cdot y^{4 n} z^{n}}$

Step 3

Simplify the denominator.

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Step 3.1

Combine $y^{4 n}$ and $\frac{3}{8}$ .

$\frac{\frac{- 2 z^{5 n} y^{2 n} - 7 z^{2 n} y^{4 n} - 14 y^{4 n}}{8}}{- \frac{y^{4 n} \cdot 3}{8} z^{n}}$

Step 3.2

Combine $z^{n}$ and $\frac{y^{4 n} \cdot 3}{8}$ .

$\frac{\frac{- 2 z^{5 n} y^{2 n} - 7 z^{2 n} y^{4 n} - 14 y^{4 n}}{8}}{- \frac{z^{n} (y^{4 n} \cdot 3)}{8}}$

Step 4

Remove unnecessary parentheses.

$\frac{\frac{- 2 z^{5 n} y^{2 n} - 7 z^{2 n} y^{4 n} - 14 y^{4 n}}{8}}{- \frac{z^{n} y^{4 n} \cdot 3}{8}}$

Step 5

Move $3$ to the left of $z^{n} y^{4 n}$ .

$\frac{\frac{- 2 z^{5 n} y^{2 n} - 7 z^{2 n} y^{4 n} - 14 y^{4 n}}{8}}{- \frac{3 z^{n} y^{4 n}}{8}}$

Step 6

Multiply the numerator by the reciprocal of the denominator.

$\frac{- 2 z^{5 n} y^{2 n} - 7 z^{2 n} y^{4 n} - 14 y^{4 n}}{8} (- \frac{8}{3 z^{n} y^{4 n}})$

Step 7

Rewrite using the commutative property of multiplication.

$- \frac{- 2 z^{5 n} y^{2 n} - 7 z^{2 n} y^{4 n} - 14 y^{4 n}}{8} \cdot \frac{8}{3 z^{n} y^{4 n}}$

Step 8

Cancel the common factor of $8$ .

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Step 8.1

Move the leading negative in $- \frac{- 2 z^{5 n} y^{2 n} - 7 z^{2 n} y^{4 n} - 14 y^{4 n}}{8}$ into the numerator.

$\frac{- (- 2 z^{5 n} y^{2 n} - 7 z^{2 n} y^{4 n} - 14 y^{4 n})}{8} \cdot \frac{8}{3 z^{n} y^{4 n}}$

Step 8.2

Cancel the common factor.

$\frac{- (- 2 z^{5 n} y^{2 n} - 7 z^{2 n} y^{4 n} - 14 y^{4 n})}{8} \cdot \frac{8}{3 z^{n} y^{4 n}}$

Step 8.3

Rewrite the expression.

$- (- 2 z^{5 n} y^{2 n} - 7 z^{2 n} y^{4 n} - 14 y^{4 n}) \frac{1}{3 z^{n} y^{4 n}}$

Step 9

Apply the distributive property.

$(- (- 2 z^{5 n} y^{2 n}) - (- 7 z^{2 n} y^{4 n}) - (- 14 y^{4 n})) \frac{1}{3 z^{n} y^{4 n}}$

Step 10

Simplify.

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Step 10.1

Multiply $- 2$ by $- 1$ .

$(2 (z^{5 n} y^{2 n}) - (- 7 z^{2 n} y^{4 n}) - (- 14 y^{4 n})) \frac{1}{3 z^{n} y^{4 n}}$

Step 10.2

Multiply $- 7$ by $- 1$ .

$(2 (z^{5 n} y^{2 n}) + 7 (z^{2 n} y^{4 n}) - (- 14 y^{4 n})) \frac{1}{3 z^{n} y^{4 n}}$

Step 10.3

Multiply $- 14$ by $- 1$ .

$(2 (z^{5 n} y^{2 n}) + 7 (z^{2 n} y^{4 n}) + 14 y^{4 n}) \frac{1}{3 z^{n} y^{4 n}}$

Step 11

Remove parentheses.

$(2 z^{5 n} y^{2 n} + 7 z^{2 n} y^{4 n} + 14 y^{4 n}) \frac{1}{3 z^{n} y^{4 n}}$

Step 12

Multiply $2 z^{5 n} y^{2 n} + 7 z^{2 n} y^{4 n} + 14 y^{4 n}$ by $\frac{1}{3 z^{n} y^{4 n}}$ .

$\frac{2 z^{5 n} y^{2 n} + 7 z^{2 n} y^{4 n} + 14 y^{4 n}}{3 z^{n} y^{4 n}}$