Answer
$8x^3+12x^2+6x+1$
Work Step by Step
$(2x+1)^3=(2x+1)(2x+1)(2x+1)=(4x^2+4x+1)(2x+1)=8x^3+4x^2+8x^2+4x+2x+1=8x^3+12x^2+6x+1$
Precalculus (6th Edition) Blitzer
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13446-914-3
ISBN 13:
978-0-13446-914-0
Chapter P - Review Exercises - Page 143: 80
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