Answer
$\dfrac{1}{16}$
Work Step by Step
$(-64)^{-(2/3)}=\dfrac{1}{(-64)^{2/3}}=\dfrac{1}{\sqrt[3] {(-64)^{2}}}=\dfrac{1}{\sqrt[3] {4096}}=\dfrac{1}{16}$
Algebra: A Combined Approach (4th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321726391
ISBN 13:
978-0-32172-639-1
Chapter 10 - Section 10.2 - Rational Exponents - Exercise Set - Page 694: 31
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