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: 7

Answer

$x=2$

Work Step by Step

RECALL: If $a^M=a^N$, then $M=N$. Write 64 as a power of 4 to obtain $4^{2x-1}=4^3.$ Use the rule above to obtain $2x-1=3 \\2x=3+1 \\2x=4 \\x=\frac{4}{2} \\x=2.$
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