Answer
4
Work Step by Step
$36=\underline{2}\times\underline{2}\times3\times3$
$20=\underline{2}\times\underline{2}\times5$
$GCF=2\times2=4$
Prealgebra (7th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321955048
ISBN 13:
978-0-32195-504-3
Chapter 10 - Section 10.4 - Introduction to Factoring Polynomials - Exercise Set - Page 722: 2
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