Answer
The solution set is $\{-5,5\}$.
Work Step by Step
Use the square root method by taking the square root of both sides.
$\sqrt{x^2}=\pm\sqrt {25}$
$x=\pm 5$
Hence, the solution set is $\{-5,5\}$.
Precalculus (10th Edition)
by Sullivan, Michael
Published by
Pearson
ISBN 10:
0-32197-907-9
ISBN 13:
978-0-32197-907-0
Appendix A - Review - A.6 Solving Equations - A.6 Assess Your Understanding - Page A51: 81
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