Answer
$-8r^{3}+12r^{2}-6r+1$
Work Step by Step
$(1-2r)^{3}=(1-2r)(1-2r)(1-2r)=1^{3}-3(1^{2})(2r)+3(1)(2r)^{2}-(2r)^{3}=-8r^{3}+12r^{2}-6r+1$
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: 65
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