Answer
$$8a^2+5a+2$$
Work Step by Step
We simplify by combining like terms as follows:
$$(3a^2+7a- 2)+(5a^2 -2a+ 4)=8a^2+5a+2.$$
Elementary Technical Mathematics
by Nelson, Robert; Eren, Dale;
Published by
Brooks Cole
ISBN 10:
1285199197
ISBN 13:
978-1-28519-919-1
Chapter 5 - Review - Page 232: 19
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