Answer
$(x+20)(x-4)$
Work Step by Step
Given:$x^2+16x-80$
Factorzie the equation then it can be written as:
$=x^2+20x-4x-80$
or, $=x(x+20)-4(x+20)$
Hence, $=(x+20)(x-4)$
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 - Review Exercises - Page 400: 40
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