Answer
$x=3$ or $x=-4$
Work Step by Step
We are given: $x^2+x-12=0$
$(x-3)(x+4)=0$
$x-3=0$ or $x+4=0$
$x=3$ or $x=-4$
Algebra 1: Common Core (15th Edition)
by Charles, Randall I.
Published by
Prentice Hall
ISBN 10:
0133281140
ISBN 13:
978-0-13328-114-9
Chapter 10 - Radical Expressions and Equations - 10-3 Operations With Radical Expressions - Practice and Problem-Solving Exercises - Page 631: 77
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