Algebra 1: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281140
ISBN 13: 978-0-13328-114-9

Chapter 9 - Quadratic Functions and Equations - 9-5 Completing the Square - Lesson Check - Page 579: 1


$x=10$ or $x=-18$

Work Step by Step

$x^2+8x=180$ $x^2+2*x*4+16=180+16$ $(x+4)^2=196$ $(x+4)^2=14^2$ $x+4= \pm 14$ $x+4=14$ or $x+4=-14$ $x=10$ or $x=-18$
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