Pre-Algebra Examples

${(2 y^{2})}^{- 3}$

Step 1

Rewrite the expression using the negative exponent rule $b^{- n} = \frac{1}{b^{n}}$ .

$\frac{1}{{(2 y^{2})}^{3}}$

Step 2

Simplify the denominator.

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Step 2.1

Apply the product rule to $2 y^{2}$ .

$\frac{1}{2^{3} {(y^{2})}^{3}}$

Step 2.2

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

$\frac{1}{8 {(y^{2})}^{3}}$

Step 2.3

Multiply the exponents in ${(y^{2})}^{3}$ .

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Step 2.3.1

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

$\frac{1}{8 y^{2 \cdot 3}}$

Step 2.3.2

Multiply $2$ by $3$ .

$\frac{1}{8 y^{6}}$