Answer
$0$
Work Step by Step
Step 1. Factor the equation to get $(3^x+4)(3^x-1)=0 \longrightarrow 3^x=-4,1$
Step 2. For $3^x=-4$, there is no real solution.
Step 3. For $3^x=1$, we have $x=0$
Precalculus (10th Edition)
by Sullivan, Michael
Published by
Pearson
ISBN 10:
0-32197-907-9
ISBN 13:
978-0-32197-907-0
Chapter 5 - Exponential and Logarithmic Functions - 5.6 Logarithmic and Exponential Equations - 5.6 Assess Your Understanding - Page 312: 59
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