Answer
$-15$
Work Step by Step
$(fg)(x)=f(x)g(x)$
$f(-5)=(-5)^2+4(-5)=25-20=5$
$g(-5)=-5+2=-3$
$(fg)(-4)=f(-4)g(-4)=5(-3)=-15$
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 2 - Test - Page 175: 15
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