Answer
$x=81$
Work Step by Step
RECALL:
$\log_a{b}=y \longrightarrow a^y=b$
Write the equation in exponential form using the rule above to obtain:
$3^4=x$
Multiply 3 to itself 4 times to obtain:
$3(3)(3)(3)=x
\\81=x$
Precalculus (6th Edition) Blitzer
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13446-914-3
ISBN 13:
978-0-13446-914-0
Chapter 3 - Section 3.4 - Exponential and Logarithmic Equations - Exercise Set - Page 489: 49
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