Answer
$8x^2-3x-6$
Work Step by Step
We do the subtraction as follows:
$$
(2x^2 - 6x -2 )-(-6x^2 - 3x+ 4)\\
=2x^2 - 6x -2 +6x^2 + 3x- 4\\
=8x^2-3x-6
.$$
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: 52
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