Answer
$x^{-9s}$
Work Step by Step
$(x^{-3s})^{3}=x^{-3s\times3}=x^{-9s}$
Algebra: A Combined Approach (4th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321726391
ISBN 13:
978-0-32172-639-1
Chapter 5 - Section 5.2 - Negative Exponents and Scientific Notation - Exercise Set - Page 356: 131
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