Answer
See below.
Work Step by Step
$(f-g)(x)=f(x)-g(x)=3x^2-4x+2-x^2+5x+3=2x^2+x+5$
Plug in $x=-1$ into $(f-g)(x)$: $(f-g)(-1)=2(-1)^2+(-1)+5=2-1+5=6$
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 - Cumulative Review Exercises - Page 176: 17
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