Answer
$4x^2+20x+25$
Work Step by Step
$(2x+5)^2=(2x+5)(2x+5)=(2x)(2x)+(2x)(5)+(5)(2x)+(5)(5)=4x^2+10x+10x+25=4x^2+20x+25$
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: 78
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