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: 19


$n=3$ or $n=-4$

Work Step by Step

$n^2+n-12=0$ $n^2-3n+4n-12=0$ $n(n-3)+4(n-3)=0$ $(n-3)(n+4)=0$ $n=3$ or $n=-4$ The equation has two solutions, $n=3$ or $n=-4$.
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