Answer
$-8$
Work Step by Step
Using $\dfrac{1}{a^{-x}}=a^x$, the given expression, $
\dfrac{1}{\left( -2 \right)^{-3}}
,$ simplifies to
\begin{array}{l}\require{cancel}
(-2)^3
\\\\=
-8
.\end{array}
Elementary Algebra
by Kaufmann, Jerome; Schwitters, Karen;
Published by
Cengage Learning
ISBN 10:
1285194055
ISBN 13:
978-1-28519-405-9
Chapter 5 - Exponents and Polynomials - Chapter 5 Review Problem Set - Page 231: 57
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