Answer
$x>5$ or $x<-5$.
Work Step by Step
$x^2-25>0$ is true when $x>5$ or $x<-5$.
The solution of the inequality is $x>5$ or $x<-5$.
Functions Modeling Change: A Preparation for Calculus, 5th Edition
by Connally, Eric; Hughes-Hallett, Deborah; Gleason, Andrew M.; Cheifetz, Phil C.
Published by
Wiley
ISBN 10:
1118583191
ISBN 13:
978-1-11858-319-7
Chapter 2 - Functions - 2.2 Domain and Range - Exercises and Problems for Section 2.2 - Skill Refresher - Page 82: S9
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