Algebra 1

Published by Prentice Hall
ISBN 10: 0133500403
ISBN 13: 978-0-13350-040-0

Chapter 9 - Quadratic Functions and Equations - 9-5 Completing the Square - Lesson Check - Page 564: 1

Answer

$x = 10, -18$

Work Step by Step

$x^2+8x=180$ $x^2+8x+(8/2)^2=180+(8/2)^2$ $x^2+8x+16 = 180+16$ $(x+4)(x+4)=196$ $\sqrt {x+4} = \sqrt {196}$ $x+4 = 14$ or $x+4 = -14$ $x+4 = 14$ or $x+4 = -14$ $x = 10, -18$
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After 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.