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 - 9-4 Factoring to Solve Quadratic Equations - Practice and Problem-Solving Exercises - Page 571: 20


$m=-6$ or $m=-7$

Work Step by Step

$x^2+13m=-42$ $x^2+13m+42=0$ $(m+6)(m+7)=0$ $m+6=0$ or $m+7=0$ $m=-6$ or $m=-7$
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