Answer
$x^{2}-2x-8$
Work Step by Step
$(x-4)(x+2)$
FOIL
$(x)(x)+(x)(2)+(-4)(x)+(-4)(2)$
$x^{2}+2x-4x-8$
$x^{2}-2x-8$
Intermediate Algebra (6th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321785045
ISBN 13:
978-0-32178-504-6
Chapter 5 - Section 5.5 - The Greatest Common Factor and Factoring by Grouping - Exercise Set - Page 295: 78
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