Answer
Doesn’t have any real $x$.
Work Step by Step
$\left( \dfrac {1}{2}\right) ^{x}+2=0\Rightarrow \left( \dfrac {1}{2}\right) ^{x}=-2\Rightarrow x=\log _{\dfrac {1}{2}}\left( -2\right) $
This equation doesn’t have any real solution
Precalculus (6th Edition)
by Lial, Margaret L.; Hornsby, John; Schneider, David I.; Daniels, Callie
Published by
Pearson
ISBN 10:
013421742X
ISBN 13:
978-0-13421-742-0
Chapter 4 - Inverse, Exponential, and Logarithmic Functions - Chapter 4 Test Prep - Review Exercises - Page 492: 50
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