Pre-Algebra Examples

$r^{- 4} s^{2}$

Step 1

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

$\frac{1}{r^{4}} s^{2}$

Step 2

Combine $\frac{1}{r^{4}}$ and $s^{2}$ .

$\frac{s^{2}}{r^{4}}$