Answer
$9$
Work Step by Step
$f(4)=4^2-2\cdot4=16-8=8$
$g(4)=4-5=-1$
$f(4)-g(4)=8-(-1)=9$
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 - Review Exercises - Page 173: 30
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