Algebra Examples

7^{- 2}

$7^{- 2}$

Step 1

Rewrite the expression using the negative exponent rule

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

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

\frac{1}{7^{2}}

$\frac{1}{7^{2}}$

Step 2

Raise

7

$7$ to the power of

2

$2$ .

\frac{1}{49}

$\frac{1}{49}$

Step 3

The result can be shown in multiple forms.

Exact Form:

\frac{1}{49}

$\frac{1}{49}$

Decimal Form:

0.02040816 \dots

$0.02040816 \dots$