Algebra Examples

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

Step 1

Change the sign of the exponent by rewriting the base as its reciprocal.

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

Step 2

Use the power rule ${(a b)}^{n} = a^{n} b^{n}$ to distribute the exponent.

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Step 2.1

Apply the product rule to $- \frac{9 y^{9}}{5 x^{5}}$ .

${(- 1)}^{3} {(\frac{9 y^{9}}{5 x^{5}})}^{3} \cdot {(\frac{9 y^{5}}{5 x^{9}})}^{- 2}$

Step 2.2

Apply the product rule to $\frac{9 y^{9}}{5 x^{5}}$ .

${(- 1)}^{3} \frac{{(9 y^{9})}^{3}}{{(5 x^{5})}^{3}} \cdot {(\frac{9 y^{5}}{5 x^{9}})}^{- 2}$

Step 2.3

Apply the product rule to $9 y^{9}$ .

${(- 1)}^{3} \frac{9^{3} {(y^{9})}^{3}}{{(5 x^{5})}^{3}} \cdot {(\frac{9 y^{5}}{5 x^{9}})}^{- 2}$

Step 2.4

Apply the product rule to $5 x^{5}$ .

${(- 1)}^{3} \frac{9^{3} {(y^{9})}^{3}}{5^{3} {(x^{5})}^{3}} \cdot {(\frac{9 y^{5}}{5 x^{9}})}^{- 2}$

Step 3

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

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

Step 4

Simplify the numerator.

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Step 4.1

Raise $9$ to the power of $3$ .

$- \frac{729 {(y^{9})}^{3}}{5^{3} {(x^{5})}^{3}} \cdot {(\frac{9 y^{5}}{5 x^{9}})}^{- 2}$

Step 4.2

Multiply the exponents in ${(y^{9})}^{3}$ .

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Step 4.2.1

Apply the power rule and multiply exponents, ${(a^{m})}^{n} = a^{m n}$ .

$- \frac{729 y^{9 \cdot 3}}{5^{3} {(x^{5})}^{3}} \cdot {(\frac{9 y^{5}}{5 x^{9}})}^{- 2}$

Step 4.2.2

Multiply $9$ by $3$ .

$- \frac{729 y^{27}}{5^{3} {(x^{5})}^{3}} \cdot {(\frac{9 y^{5}}{5 x^{9}})}^{- 2}$

Step 5

Simplify the denominator.

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Step 5.1

Raise $5$ to the power of $3$ .

$- \frac{729 y^{27}}{125 {(x^{5})}^{3}} \cdot {(\frac{9 y^{5}}{5 x^{9}})}^{- 2}$

Step 5.2

Multiply the exponents in ${(x^{5})}^{3}$ .

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Step 5.2.1

Apply the power rule and multiply exponents, ${(a^{m})}^{n} = a^{m n}$ .

$- \frac{729 y^{27}}{125 x^{5 \cdot 3}} \cdot {(\frac{9 y^{5}}{5 x^{9}})}^{- 2}$

Step 5.2.2

Multiply $5$ by $3$ .

$- \frac{729 y^{27}}{125 x^{15}} \cdot {(\frac{9 y^{5}}{5 x^{9}})}^{- 2}$

Step 6

Change the sign of the exponent by rewriting the base as its reciprocal.

$- \frac{729 y^{27}}{125 x^{15}} \cdot {(\frac{5 x^{9}}{9 y^{5}})}^{2}$

Step 7

Use the power rule ${(a b)}^{n} = a^{n} b^{n}$ to distribute the exponent.

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Step 7.1

Apply the product rule to $\frac{5 x^{9}}{9 y^{5}}$ .

$- \frac{729 y^{27}}{125 x^{15}} \cdot \frac{{(5 x^{9})}^{2}}{{(9 y^{5})}^{2}}$

Step 7.2

Apply the product rule to $5 x^{9}$ .

$- \frac{729 y^{27}}{125 x^{15}} \cdot \frac{5^{2} {(x^{9})}^{2}}{{(9 y^{5})}^{2}}$

Step 7.3

Apply the product rule to $9 y^{5}$ .

$- \frac{729 y^{27}}{125 x^{15}} \cdot \frac{5^{2} {(x^{9})}^{2}}{9^{2} {(y^{5})}^{2}}$

Step 8

Simplify the numerator.

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Step 8.1

Raise $5$ to the power of $2$ .

$- \frac{729 y^{27}}{125 x^{15}} \cdot \frac{25 {(x^{9})}^{2}}{9^{2} {(y^{5})}^{2}}$

Step 8.2

Multiply the exponents in ${(x^{9})}^{2}$ .

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Step 8.2.1

Apply the power rule and multiply exponents, ${(a^{m})}^{n} = a^{m n}$ .

$- \frac{729 y^{27}}{125 x^{15}} \cdot \frac{25 x^{9 \cdot 2}}{9^{2} {(y^{5})}^{2}}$

Step 8.2.2

Multiply $9$ by $2$ .

$- \frac{729 y^{27}}{125 x^{15}} \cdot \frac{25 x^{18}}{9^{2} {(y^{5})}^{2}}$

Step 9

Simplify the denominator.

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Step 9.1

Raise $9$ to the power of $2$ .

$- \frac{729 y^{27}}{125 x^{15}} \cdot \frac{25 x^{18}}{81 {(y^{5})}^{2}}$

Step 9.2

Multiply the exponents in ${(y^{5})}^{2}$ .

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Step 9.2.1

Apply the power rule and multiply exponents, ${(a^{m})}^{n} = a^{m n}$ .

$- \frac{729 y^{27}}{125 x^{15}} \cdot \frac{25 x^{18}}{81 y^{5 \cdot 2}}$

Step 9.2.2

Multiply $5$ by $2$ .

$- \frac{729 y^{27}}{125 x^{15}} \cdot \frac{25 x^{18}}{81 y^{10}}$

Step 10

Simplify terms.

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Step 10.1

Cancel the common factor of $81 y^{10}$ .

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Step 10.1.1

Move the leading negative in $- \frac{729 y^{27}}{125 x^{15}}$ into the numerator.

$\frac{- 729 y^{27}}{125 x^{15}} \cdot \frac{25 x^{18}}{81 y^{10}}$

Step 10.1.2

Factor $81 y^{10}$ out of $- 729 y^{27}$ .

$\frac{81 y^{10} (- 9 y^{17})}{125 x^{15}} \cdot \frac{25 x^{18}}{81 y^{10}}$

Step 10.1.3

Cancel the common factor.

$\frac{81 y^{10} (- 9 y^{17})}{125 x^{15}} \cdot \frac{25 x^{18}}{81 y^{10}}$

Step 10.1.4

Rewrite the expression.

$\frac{- 9 y^{17}}{125 x^{15}} \cdot (25 x^{18})$

Step 10.2

Cancel the common factor of $25 x^{15}$ .

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Step 10.2.1

Factor $25 x^{15}$ out of $125 x^{15}$ .

$\frac{- 9 y^{17}}{25 x^{15} (5)} \cdot (25 x^{18})$

Step 10.2.2

Factor $25 x^{15}$ out of $25 x^{18}$ .

$\frac{- 9 y^{17}}{25 x^{15} (5)} \cdot (25 x^{15} (x^{3}))$

Step 10.2.3

Cancel the common factor.

$\frac{- 9 y^{17}}{25 x^{15} \cdot 5} \cdot (25 x^{15} x^{3})$

Step 10.2.4

Rewrite the expression.

$\frac{- 9 y^{17}}{5} \cdot x^{3}$

Step 10.3

Combine $\frac{- 9 y^{17}}{5}$ and $x^{3}$ .

$\frac{- 9 y^{17} x^{3}}{5}$

Step 10.4

Move the negative in front of the fraction.

$- \frac{9 y^{17} x^{3}}{5}$