Answer
$b^2=4$
Work Step by Step
We know that if $\log_a{y}=x$ then $a^x=y$.
Hence, if $\log_b{4}=2$, then $b^2=4$.
Precalculus (10th Edition)
by Sullivan, Michael
Published by
Pearson
ISBN 10:
0-32197-907-9
ISBN 13:
978-0-32197-907-0
Chapter 5 - Exponential and Logarithmic Functions - 5.4 Logarithmic Functions - 5.4 Assess Your Understanding - Page 294: 22
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