Answer
28
Work Step by Step
Simplifying the expression, we find:
$$\log _2\left(x+4\right)=\log _2\left(32\right) \\ x+4=32 \\ x=28$$
This is not extraneous.
Algebra 2 (1st Edition)
by Larson, Ron; Boswell, Laurie; Kanold, Timothy D.; Stiff, Lee
Published by
McDougal Littell
ISBN 10:
0618595414
ISBN 13:
978-0-61859-541-9
Chapter 7 Exponential and Logarithmic Functions - 7.7 Write and Apply Exponential and Power Functions - 7.7 Exercises - Quiz for Lessons 7.6-7.7 - Page 536: 9
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