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: 14

Answer

$ x= \ln 1, \ln 5 $ or, $ x= 0 ; x=1.609438$

Work Step by Step

We are given that $ e^{2x}-6e^x +5=0$ or, $(e^x -5)(e^x-1) =0$ Solve by equating both factors to $0$: $ e^5 -5 =0 \implies x =\ln 5$ and $ e^x -1 =0 \implies x= \ln 1$ So, $ x= \ln 1, \ln 5 $ or, $ x= 0 ; x=1.609438$
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