Algebra 1: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281140
ISBN 13: 978-0-13328-114-9

Chapter 11 - Rational Expressions and Functions - Get Ready! - Page 661: 14


$r=-5$ or $r=-\frac{2}{3}$

Work Step by Step

$6r^2+20=-34r$ $6r^2+34r+20=0$ $6r^2+4r+30r+20=0$ $2r(3r+2)+10(3r+2)=0$ $(2r+10)(3r+2)=0$ $2r+10=0$ or $3r+2=0$ $2r=-10$ or $3r=-2$ $r=-5$ or $r=-\frac{2}{3}$
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