Answer
$(z+7y)^2$
Work Step by Step
RECALL:
$a^2 + 2ab + b^2=(a+b)^2$
The given trinomial can be written as:
$=z^2 + 2(z)(7y) + (7y)^2$
Factor the trinomial using the formula above with $a=z$ and $b=7y$ to have:
$=(z+7y)^2$
Calculus with Applications (10th Edition)
by Lial, Margaret L.; Greenwell, Raymond N.; Ritchey, Nathan P.
Published by
Pearson
ISBN 10:
0321749006
ISBN 13:
978-0-32174-900-0
Chapter R - Algebra Reference - R.2 Factoring - R.2 Exercises - Page R-8: 25
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