Intermediate Algebra: Connecting Concepts through Application

Published by Brooks Cole
ISBN 10: 0-53449-636-9
ISBN 13: 978-0-53449-636-4

Chapter 5 - Exponential Functions - 5.2 Solving Equations Using Exponent Rules - 5.2 Exercises - Page 437: 22



Work Step by Step

$(-7)^{x}=49$ $(-7)^{x}=(-7)^{2}$ $x=2$ Check: $(-7)^{2}4\overset{?}{=}9$ $49=49$.
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