Answer
$x=\pm 3\sqrt 2 -3$
Work Step by Step
$x^2+6x-9=0$
$x^2+6x+9=18$
$(x+3)^2=18$
$x+3=\pm \sqrt 18$
$x+3=\pm 3\sqrt 2$
$x=\pm 3\sqrt 2 -3$
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 - 10-2 Simplifying Radicals - Practice and Problem-Solving Exercises - Page 624: 70
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.
