Prealgebra (7th Edition)

Published by Pearson
ISBN 10: 0321955048
ISBN 13: 978-0-32195-504-3

Chapter 4 - Section 4.6 - Complex Fractions and Review of Order of Operations - Exercise Set - Page 285: 49



Work Step by Step

$(-\frac{2}{9}-\frac{7}{9})^{4}$ $=(-\frac{9}{9})^{4}$ $=(-1)^{4}$ $=[(-1)\times(-1)\times(-1)\times(-1)]$ $=(1\times1\times1\times1)$ $=1$
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