College Algebra 7th Edition

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: 65

Answer

$-8r^{3}+12r^{2}-6r+1$

Work Step by Step

$(1-2r)^{3}=(1-2r)(1-2r)(1-2r)=1^{3}-3(1^{2})(2r)+3(1)(2r)^{2}-(2r)^{3}=-8r^{3}+12r^{2}-6r+1$
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