Answer
x=-4 or 5
Work Step by Step
(x+3)(x-4)=8
x$^2$-x-12=8
x$^2$-x-20=0
(x-5)(x+4)=0
x=-4 or 5
College Algebra (6th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-32178-228-3
ISBN 13:
978-0-32178-228-1
Chapter 2 - Summary, Review, and Test - Cumulative Review Exercises (Chapters 1-2) - Page 328: 6
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