Answer
$a^2-5a-3$
Work Step by Step
$f(a)=a^2-3a+8$
$g(a+3)=-2(a+3)-5=-2a-6-5=-2a-11$
Thus $f(a)+g(a+3)=a^2-3a+8-2a-11=a^2-5a-3$
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 - Mid-Chapter Check Point - Page 135: 17
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