Answer
$x=-1±\sqrt {13}$
Work Step by Step
$x^2+2x-12=0$
$x^2+2x+1-1-12=0$
$(x+1)^2-13=0$
$(x+1)^2=13$
$\sqrt {(x+1)^2}=\sqrt {13}$
$x+1=\sqrt {13}$
$x=-1±\sqrt {13}$
Algebra: A Combined Approach (4th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321726391
ISBN 13:
978-0-32172-639-1
Chapter 11 - Section 11.3 - Integrated Review - Summary on Solving Quadratic Equations - Page 791: 5
Update this answer!
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.
