Answer
All real numbers $x$ such that $x\ne -2,2$
Work Step by Step
The denominator must not be zero:
$|x^2-4|\ne 0$
$x^2\ne 4$
$x\ne -2,2$
Calculus 10th Edition
by Larson, Ron; Edwards, Bruce H.
Published by
Brooks Cole
ISBN 10:
1-28505-709-0
ISBN 13:
978-1-28505-709-5
Chapter P - P.3 - Functions and Their Graphs - Exercises - Page 27: 28
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