Answer
$9x^2-5x$
Work Step by Step
We simplify by removing the parentheses and then add the like terms as follows:
$$(6x^2 - 7x +5) + (3x^2 +2x -5)=6x^2 - 7x +5+ 3x^2 +2x -5\\
=9x^2-5x
.$$
Elementary Technical Mathematics
by Nelson, Robert; Eren, Dale;
Published by
Brooks Cole
ISBN 10:
1285199197
ISBN 13:
978-1-28519-919-1
Chapter 5 - Section 5.3 - Addition and Subtraction of Polynomials - Exercise - Page 221: 23
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