Answer
$6x$
Work Step by Step
$f(-x)-f(x)=[(-x)^{2}-3(-x)+7]-[x^{2}-3x+7]$
$=[x^{2}+3x+7]-x^{2}+3x-7]$
$=6x$
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 2.1 - Introduction to Functions - Exercise Set - Page 112: 30
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