Answer
$$x^3+3x-3.$$
Work Step by Step
We subtract the $x^3$-terms as follows
$$
2x^3-x^3=x^3
$$
then subtract the $x$-terms as follows
$$
4x-x=3x
$$
then subtract the constant terms as follows
$$
-1-2=-3
$$
Hence the result is
$$x^3+3x-3.$$
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: 55
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