Answer
x-4
Work Step by Step
(A+B)(A-B)=A$^2$-B$^2$
($\sqrt x$+2)($\sqrt x$-2)
($\sqrt x$)$^2$-(2)$^2$
x-4
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 P, Prerequisites - Section P.5 - Algebraic Expressions - P.5 Exercises - Page 36: 61
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