Answer
$-13x^{2}+2x$
Work Step by Step
We are given the polynomial $-x+3x-4x^{2}-9x^{2}$. We can simplify by combining like terms.
$(-x+3x)+(-4x^{2}-9x^{2})=(3x-x)+(-13x^{2})=(2x)+(-13x^{2})=-13x^{2}+2x$
Intermediate Algebra (6th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321785045
ISBN 13:
978-0-32178-504-6
Chapter 5 - Section 5.3 - Polynomials and Polynomial Functions - Exercise Set - Page 279: 30
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