Introductory Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-805-X
ISBN 13: 978-0-13417-805-9

Chapter 5 - Section 5.4 - Polynomials in Several Variables - Exercise Set: 9

Answer

$7x^2y-4xy$

Work Step by Step

Removing the grouping symbols and then combining like terms, the given expression, $ (5x^2y-3xy)+(2x^2y-xy) ,$ simplifies to \begin{array}{l}\require{cancel} 5x^2y-3xy+2x^2y-xy \\\\= (5x^2y+2x^2y)+(-3xy-xy) \\\\= 7x^2y-4xy .\end{array}
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