Answer
$7x^2-x -7$
Work Step by Step
We simplify by removing the parentheses and then combine the like terms as follows
$$
(x^2 - 3x + 1) + 2(3x^2 + x - 4)=x^2 - 3x + 1+ 6x^2 + 2x - 8\\
=7x^2-x -7
.$$
Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (3rd Edition)
by Sullivan III, Michael
Published by
Pearson
ISBN 10:
0-32193-104-1
ISBN 13:
978-0-32193-104-7
Appendix A - Review - A.3 Polynomials - A.3 Assess Your Understanding - Page A31: 33
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.
