Precalculus (6th Edition) Blitzer

Published by Pearson
ISBN 10: 0-13446-914-3
ISBN 13: 978-0-13446-914-0

Chapter 3 - Test - Page 515: 6


$3+5 \log_4 x $

Work Step by Step

Recall the log rules: (a) $\log_b{p \cdot q} =\log p + \log q $ (b) $\log{a^n}=n \log x $ (c) $\log_a{a^x}=x $ Use the rule (a) with $ p=64$ and $ q=x^5$ to obtain $\log_4 {64x^5}=\log_4 64+\log_4 x^5$ Simplify the second term by applying rules (b) and $(c)$ to obtain: $\log_4 4^3+\log_4 x^5= 3+5 \log_4 x $
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