Answer
$9; \ \ -9$
Work Step by Step
We have
$$(-3)^2=(-3)(-3)=9,\\ \quad -3^2=-(3\cdot3)=-9$$
Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (3rd Edition)
by Sullivan III, Michael
Published by
Pearson
ISBN 10:
0-32193-104-1
ISBN 13:
978-0-32193-104-7
Appendix A - Review - A.7 nth Roots; Rational Exponents - A.7 Assess Your Understanding - Page A60: 1
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