Answer
True
Work Step by Step
Plug $y=-4$,w e have
$7y^2+(2k-5)y-20=0$
or,
$7(-4)^2+(2k-5)(-4)-20=0$
Simplify. $-8k=112$
This implies $k=14$
Hence, the given statement is true.
Intermediate Algebra for College Students (7th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13417-894-7
ISBN 13:
978-0-13417-894-3
Chapter 5 - Section 5.7 - Polynomial Equations and Their Applications - Exercise Set - Page 394: 107
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