Precalculus (6th Edition) Blitzer

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: 49

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: $3(3)(3)(3)=x \\81=x$
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