Answer
-7$x^{2}$-2x-5.6
Work Step by Step
($x^{2}$-x+1.1)+(-8$x^{2}$-x-6.7)
=$x^{2}$-x+1.1-8$x^{2}$-x-6.7
=-7$x^{2}$-2x-5.6
Prealgebra (7th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321955048
ISBN 13:
978-0-32195-504-3
Chapter 10 - Section 10.1 - Adding and Subtracting Polynomials - Practice - Page 699: 4
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