Answer
$x^2+6x+9$
Work Step by Step
$A=l\times w,$
$l=x+3, w=x+3,$
$A=(x+3)(x+3)=x^2+3x+3x+9=x^2+6x+9$
Introductory Algebra for College Students (7th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13417-805-X
ISBN 13:
978-0-13417-805-9
Chapter 5 - Section 5.3 - Special Products - Exercise Set - Page 368: 84
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