Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Chapter 5 - Section 5.1 - Exponents - Exercise Set - Page 345: 71

Answer

-81

Work Step by Step

$-9^{2}=-1\times9^{2}=-1\times(9\times9)=-1\times81=-81$
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