Intermediate Algebra (6th Edition)

Published by Pearson
ISBN 10: 0321785045
ISBN 13: 978-0-32178-504-6

Chapter 5 - Section 5.4 - Multiplying Polynomials - Exercise Set - Page 289: 23

Answer

$10x^2-21xy+8y^2$

Work Step by Step

Using the FOIL Method, $(a+b)(c+d)=ac+ad+bc+bd$, the given expression simplifies to \begin{align*} & (5x-8y)(2x-y) \\\\&= 10x^2-5xy-16xy+8y^2 \\\\&= 10x^2-21xy+8y^2 .\end{align*}
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