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 - 3.2 Combining Functions - 3.2 Exercises: 40

Answer

$15x^{2}y+21xy^{2}+10x^{2}+14xy$

Work Step by Step

$(3xy+2x)(5x+7y)$ $=3xy(5x+7y)+2x(5x+7y)$ $=15x^{2}y+21xy^{2}+10x^{2}+14xy$
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