Answer
$8$.
Work Step by Step
The given expression is
$=(2^{-1})^{-3}$
Use the law of exponents $(a^{m})^n=a^{mn}$
We have $a=2,m=-1$ and $n=-3$
$=2^{(-1)(-3)}$
Simplify.
$=2^{3}$
Use $2^3=8$
$=8$.
Precalculus (10th Edition)
by Sullivan, Michael
Published by
Pearson
ISBN 10:
0-32197-907-9
ISBN 13:
978-0-32197-907-0
Appendix A - Review - A.1 Algebra Essentials - A.1 Assess Your Understanding - Page A12: 92
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