Answer
$x=-4$ or $x=3$
Work Step by Step
$x^{2}+x-12$
=$x^{2} + 4x - 3x -12$
=$x(x+4)-3(x+4)$
=$(x+4)(x-3)$
$x=-4$ or $x=3$
Finite Math and Applied Calculus (6th Edition)
by Waner, Stefan; Costenoble, Steven
Published by
Brooks Cole
ISBN 10:
1133607705
ISBN 13:
978-1-13360-770-0
Chapter 0 - Section 0.3 - Multiplying and Factoring Algebraic Expressions - Exercises - Page 21: 37
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