Answer
$-27$
Work Step by Step
$x^{5/3}=-243\Rightarrow \left( \sqrt [3] {x}\right) ^{5}=\left( -3\right) ^{5}\Rightarrow \sqrt [3] {x}=-3\Rightarrow x=\left( -3\right) ^{3}=-27$
Precalculus (6th Edition)
by Lial, Margaret L.; Hornsby, John; Schneider, David I.; Daniels, Callie
Published by
Pearson
ISBN 10:
013421742X
ISBN 13:
978-0-13421-742-0
Chapter 4 - Inverse, Exponential, and Logarithmic Functions - 4.2 Exponential Functions - 4.2 Exercises - Page 432: 89
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