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 - Mid-Chapter Quiz - Page 575: 13


$m= \pm 9$

Work Step by Step

$m^2=81$ $m^2-81=0$ $(m-9)(m+9)=0$ $m=\pm 9$ The equation has two solutions, $m= \pm 9$
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