Functions Modeling Change: A Preparation for Calculus, 5th Edition

Published by Wiley
ISBN 10: 1118583191
ISBN 13: 978-1-11858-319-7

Chapter 4 - Exponential Functions - 4.2 Comparing Exponential and Linear Functions - Exercises and Problems for Section 4.2 - Skill Refresher - Page 153: S8

Answer

$$x=\frac{1}{5},\:x=-\frac{1}{5}$$

Work Step by Step

Solving the equation for x, we find: $$ \frac{5}{x^2}=125 \\ 5=125x^2 \\ x=\frac{1}{5},\:x=-\frac{1}{5}$$
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