## Intermediate Algebra: Connecting Concepts through Application

Published by Brooks Cole

# Chapter 3 - Exponents, Polynomials and Functions - Chapter Test - Page 289: 14

#### Answer

9x$^2$y-4xy-2y$^2$+8

#### Work Step by Step

(4x$^2$y+3xy-2y$^2$)+(5x$^2$y-7xy+8) =4x$^2$y+3xy-2y$^2$+5x$^2$y-7xy+8 =9x$^2$y-4xy-2y$^2$+8

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