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 - Page 491: 137

Answer

Does not make sense.

Work Step by Step

No. In the first equation, since 15 is not a power of 2, you would take the logarithm of both sides to remove x from the exponent. In the second, you would recognize 16 as $2^{4}$ and apply the one-to-one property of exponential functions.
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