Pre-Algebra Examples

$3 (m^{- 2} n^{2})$

Step 1

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

$3 (\frac{1}{m^{2}} n^{2})$

Step 2

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

$3 \frac{n^{2}}{m^{2}}$

Step 3

Combine $3$ and $\frac{n^{2}}{m^{2}}$ .

$\frac{3 n^{2}}{m^{2}}$