Answer
$x=0$
Work Step by Step
$\sqrt{1+x}+\sqrt{1-x}=2$
$4x^2-16x+16=16-16x$
$4x^2=0$
$x=0$
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 1, Equations and Graphs - Section 1.6 - Solving Other Types of Equations - 1.6 Exercises - Page 139: 48
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