Answer
$b^{4}-2b^{2}+1$
Work Step by Step
We distribute all the terms:
$(1-b)^{2}(1+b)^{2}=(1-b)(1-b)(1+b)(1+b)=b^{4}-2b^{2}+1$
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: 82
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