Intermediate Algebra (12th Edition)

Published by Pearson
ISBN 10: 0321969359
ISBN 13: 978-0-32196-935-4

Chapter 9 - Section 9.4 - Properties of Logarithms - 9.4 Exercises - Page 614: 50

Answer

FALSE

Work Step by Step

The left-hand expression, $ \log_2(64-16) $, is equivalent to \begin{align*} & \log_2 48 .\end{align*} Using the properties of logarithms, the right-hand expression, $ \log_2 64-\log_2 16 $, is equivalent to \begin{align*} & \log_2 \dfrac{64}{16} &(\text{use }\log_b \dfrac{x}{y}=\log_b x-\log_b y) \\\\&= \log_2 4 .\end{align*} Since $\log_2 48\ne\log_24$, then the given statement is false.
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