Answer
$x=-3$
Work Step by Step
$2x^3=-54$
$2x^3/2=-54/2$
$x^3=-27$
$\sqrt[3] {x^3} =\sqrt[3] {-27}$
$x=-3$
Algebra: A Combined Approach (4th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321726391
ISBN 13:
978-0-32172-639-1
Chapter 11 - Section 11.3 - Solving Equations by Using Quadratic Methods - Exercise Set - Page 790: 77
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