Answer
$\frac{1}{4}, 4$
Work Step by Step
1. $log_2x^{log_2x}=4 \Longrightarrow (log_2x)^2=4 \Longrightarrow log_2x=\pm2 \Longrightarrow x= \frac{1}{4}, 4$
2. Check, $x= \frac{1}{4}, 4$ fit(s).
Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (3rd Edition)
by Sullivan III, Michael
Published by
Pearson
ISBN 10:
0-32193-104-1
ISBN 13:
978-0-32193-104-7
Chapter 4 - Exponential and Logarithmic Functions - Section 4.6 Logarithmic and Exponential Equations - 4.6 Assess Your Understanding - Page 338: 90
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