Algebra Examples

9^{- 2}

$9^{- 2}$

Step 1

Rewrite the expression using the negative exponent rule

b^{- n} = \frac{1}{b^{n}}

$b^{- n} = \frac{1}{b^{n}}$ .

\frac{1}{9^{2}}

$\frac{1}{9^{2}}$

Step 2

Raise

9

$9$ to the power of

2

$2$ .

\frac{1}{81}

$\frac{1}{81}$

Step 3

The result can be shown in multiple forms.

Exact Form:

\frac{1}{81}

$\frac{1}{81}$

Decimal Form:

0.01234567 \dots

$0.01234567 \dots$