Algebra and Trigonometry 10th Edition

Published by Cengage Learning
ISBN 10: 9781337271172
ISBN 13: 978-1-33727-117-2

Chapter 1 - 1.4 - Quadratic Equations and Applications - 1.4 Exercises - Page 110: 59


The quadratic equation has one real solution.

Work Step by Step

$Discriminant\gt0$: two real solutions. $Discriminant=0$: one real solution. $Discriminant\lt0$: no real solutions. $9x^2+12x+4=0~~$ ($a=9,b=12,c=4$) $Discriminant=b^2-4ac=12^2-4(9)(4)=144-144=0$
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