Precalculus (6th Edition)

Published by Pearson
ISBN 10: 013421742X
ISBN 13: 978-0-13421-742-0

Chapter 4 - Inverse, Exponential, and Logarithmic Functions - 4.5 Exponential and Logarithmic Equations - 4.5 Exercises - Page 469: 85

Answer

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Work Step by Step

Incorrect. Although there is a requirement of $x\gt0$ for $log_ax$, there could be complex forms in a logarithm. For example $log(10-x)=2$ has a negative solution.
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