Pre-Algebra Examples

$- 5 z^{- 4}$

Step 1

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

$- 5 \frac{1}{z^{4}}$

Step 2

Combine $- 5$ and $\frac{1}{z^{4}}$ .

$\frac{- 5}{z^{4}}$

Step 3

Move the negative in front of the fraction.

$- \frac{5}{z^{4}}$