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

Published by Pearson

# Chapter 5 - Section 5.4 - Adding and Subtracting Polynomials - Exercise Set: 55

-15x + 7

#### Work Step by Step

the translation is ( $x^{2}$ - 9x + 2 ) + (2 $x^{2}$ -6x + 1 ) - ( 3$x^{2}$ -4) ( $x^{2}$ - 9x + 2 ) + (2 $x^{2}$ -6x + 1 ) + ( - 3$x^{2}$ + 4) add the opposite $x^{2}$ - 9x + 2 + 2 $x^{2}$ -6x + 1 - 3$x^{2}$ +4 combine like terms $x^{2}$ + 2 $x^{2}$ - 3$x^{2}$ - 9x - 6x + 2 + 1+ 4 - 15x + 7

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