Answer
Domain: $x\lt-2$ or $x\gt2$
Work Step by Step
We must have that:
$x^2-4\gt0$
$x^2\gt4$
$|x|^2\gt4$
$|x|\gt2$
$x\lt-2$ or $x\gt2$
College Algebra 7th Edition
by Stewart, James; Redlin, Lothar; Watson, Saleem
Published by
Brooks Cole
ISBN 10:
1305115546
ISBN 13:
978-1-30511-554-5
Chapter 4, Exponential and Logarithmic Functions - Chapter 4 Review - Concept Check - Page 425: 19
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