Intermediate Algebra: Connecting Concepts through Application

Published by Brooks Cole
ISBN 10: 0-53449-636-9
ISBN 13: 978-0-53449-636-4

Chapter 3 - Exponents, Polynomials and Functions - Chapter Review Exercises: 17

Answer

$2x^{2}y-2xy-13y^{2}$

Work Step by Step

$(2x^{2}y+5xy-4y^{2})-(7xy+9y^{2})$ $=2x^{2}y+5xy-7xy-4y^{2}-9y^{2}$ $=2x^{2}y-2xy-13y^{2}$
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