Answer
7.9$x^{3}$ + 4.4$x^{2}$ -3.4x -3
Work Step by Step
(1.2 $x^{3}$ - 3.4x + 7.9 ) + ( 6,7 $x^{3}$ + 4.4$x^{2}$ -10.9 =
(1.2$x^{3}$ + 6.7$x^{3} $ ) + ( -3.4x) + 4.4$x^{2}$ + (7.9 - 10.9) =
combine like terms
7.9$x^{3}$ - 3.4x + 4.4$x^{2}$ -3
Algebra: A Combined Approach (4th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321726391
ISBN 13:
978-0-32172-639-1
Chapter 5 - Section 5.4 - Adding and Subtracting Polynomials - Exercise Set - Page 371: 9
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