Answer
$(f-g)(x)=x^{2}+5x-2$
$(f-g)(5)=48$
Work Step by Step
$(f-g)(x)=f(x)-g(x)$
$=x^{2}+4x-2+x$
$=x^{2}+5x-2$
Plugin $x=5$ into $x^{2}+5x-2.$
$(f-g)(5)=5^{2}+5\times5-2=25+25-2=48$
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 - Section 2.3 - The Algebra of Functions - Exercise Set - Page 133: 35
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