Evaluate -2^-3

$- 2^{- 3}$

Step 1

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

$- \frac{1}{2^{3}}$

Step 2

Raise $2$ to the power of $3$ .

$- \frac{1}{8}$

Step 3

The result can be shown in multiple forms.

Exact Form:

$- \frac{1}{8}$

Decimal Form:

$- 0.125$