Answer
$-2,8$
Work Step by Step
Step 1. Raise both side to the 4th power to get $x^2-6x=2^4=16\longrightarrow x^2-6x-16=0$
Step 2. Factor the equation to get $(x+2)(x-8)=0$, thus $x=-2$ and $x=8$
Step 3. Check the answers and they both fit.
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 1 - Equations and Inequalities - Chapter 1 Test Prep - Review Exercises - Page 179: 68
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