Answer
f
Work Step by Step
$x^2+4x+4=x^2+2\cdot x\cdot2+2^2=(x+2)^2$, thus the answer is f
Intermediate Algebra for College Students (7th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13417-894-7
ISBN 13:
978-0-13417-894-3
Chapter 5 - Section 5.6 - A General Factoring Strategy - Concept and Vocabulary Check - Page 378: 6
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