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: 19


$m=8$ or $m=\frac{-5}{4}$

Work Step by Step

$4m^2-27m-40=0$ $(m-8)(4m+5)=0$ $m-8=0$ or $4m+5=0$ $m=8$ or $m=\frac{-5}{4}$
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