## Algebra: A Combined Approach (4th Edition)

Published by Pearson

# Chapter 5 - Section 5.4 - Adding and Subtracting Polynomials - Exercise Set - Page 371: 9

#### 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

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