Answer
$x^2+13x+40$
Work Step by Step
$ (x + 8)(x + 5) $
$=x^2+5x+8x+40$
$=x^2+13x+40$
F.O.I.L.
Precalculus (6th Edition) Blitzer
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13446-914-3
ISBN 13:
978-0-13446-914-0
Chapter P - Section P.4 - Polynomials - Exercise Set - Page 56: 20
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