Algebra: A Combined Approach (4th Edition)

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

Chapter 1 - Section 1.6 - Multiplying and Dividing Real Numbers - Exercise Set - Page 62: 88

Answer

-1

Work Step by Step

Using order of operations, first solve expression inside parentheses, then solve exponents, then multiply, and finally subtract. $3^{2}$ - 2[(3 - 5) - (2 - 9)] = $3^{2}$ - 2[-2 - (-7)] = $3^{2}$ - 2(5) = 9 - 2(5) = 9 - 10 = -1
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