Precalculus (6th Edition)

Published by Pearson
ISBN 10: 013421742X
ISBN 13: 978-0-13421-742-0

Chapter 1 - Equations and Inequalities - 1.6 Other Types of Equations and Applications - 1.6 Exercises - Page 148: 81

Answer

$\{\frac{3}{2}\}$

Work Step by Step

Step 1. Rewrite the equation as $(2x+5)^{1/3}=(6x-1)^{1/3}$ Step 2. Raise both sides to the 3rd power to get: $2x+5=6x-1$ which gives $x=\frac{3}{2}$ Step 3. Check answer in the original equation: $\{\frac{3}{2}\}$ fits.
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