Algebra Examples

$4 x^{2 - 9}$

Step 1

Subtract $9$ from $2$ .

$4 x^{- 7}$

Step 2

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

$4 \frac{1}{x^{7}}$

Step 3

Combine $4$ and $\frac{1}{x^{7}}$ .

$\frac{4}{x^{7}}$