Answer
$x^\frac{1}{3}$, $u^{2}+2u-3=0$
Work Step by Step
Substitute $$u=x^\frac{1}{3}$$ and rewrite the equation in terms of $u$: $$u^{2}+2u-3=0.$$
College Algebra (6th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-32178-228-3
ISBN 13:
978-0-32178-228-1
Chapter 1 - Equations and Inequalities - Concept and Vocabulary Check - Page 178: 9
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