Answer
$0$
Work Step by Step
Treat $3^x$ as a single unit, $3^{2x}+3^x-2=0 \Longrightarrow (3^x+2)(3^x-1)=0 \Longrightarrow 3^x=-2, 1 \Longrightarrow x=0$
Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (3rd Edition)
by Sullivan III, Michael
Published by
Pearson
ISBN 10:
0-32193-104-1
ISBN 13:
978-0-32193-104-7
Chapter 4 - Exponential and Logarithmic Functions - Section 4.6 Logarithmic and Exponential Equations - 4.6 Assess Your Understanding - Page 337: 58
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