Answer
$$2x^2+ 6x +2
.$$
Work Step by Step
We simplify by removing the parentheses and then add the like terms as follows:
$$
(3x^2+ 4x + 7) - (x^2 - 2x + 5)\\
=3x^2+ 4x + 7 - x^2 + 2x - 5\\
=2x^2+ 6x +2
.$$
Elementary Technical Mathematics
by Nelson, Robert; Eren, Dale;
Published by
Brooks Cole
ISBN 10:
1285199197
ISBN 13:
978-1-28519-919-1
Chapter 5 - Section 5.3 - Addition and Subtraction of Polynomials - Exercise - Page 221: 37
Update this answer!
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.
