Answer
5$(x+2)^{2}$
Work Step by Step
5$x^{2}$+20x+20=5($x^{2}$+4x+4)=5[$x^{2}$+2*x*2+$2^{2}$)=
5$(x+2)^{2}$
Algebra: A Combined Approach (4th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321726391
ISBN 13:
978-0-32172-639-1
Chapter 6 - Review - Page 476: 88
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