Answer
$\huge\color{blue}{5^2}$
Work Step by Step
$\large(-5)^2 \ne -5^2$
$(-5)^2 = (-5)(-5)$
The negative signs cancel out.
$(-5)(-5) = (5)(5) = 5^2$
$\huge\color{blue}{5^2}$
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 R - Review of Basic Concepts - Chapter R Test Prep - Review Exercises - Page 84: 124
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