College Algebra (6th Edition)

Published by Pearson
ISBN 10: 0-32178-228-3
ISBN 13: 978-0-32178-228-1

Chapter 1 - Mid-Chapter Check Point - Page 165: 22

Answer

Two rational solutions

Work Step by Step

10x(x+4)=15x-15 10x$^2$+40x-15x+15=0 2x$^2$+5x+3=0 D=5$^2$-4(2)(3) D=25-24 D=1 Since the discriminant is a positive perfect square, there must be two rational solutions.
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