Answer
-2.5
Work Step by Step
Using the rules of exponents, we find:
$$2^{x+x+1}=\frac{1}{16} \\ 2^{x+x+1}=2^{4\left(-1\right)} \\ 2x+1=-4 \\ x=-\frac{5}{2}$$
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 6 Rational Exponents and Radical Functions - 6.2 Apply Properties of Rational Exponents - 6.2 Exercises - Skill Practice - Page 425: 82b
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