Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)

Published by Pearson
ISBN 10: 0-32184-874-8
ISBN 13: 978-0-32184-874-1

Chapter 4 - Polynomials - 4.7 Polynomials in Several Variables - 4.7 Exercise Set: 11

Answer

$-13$

Work Step by Step

Substitute the given values of the variables to obtain: $x^2-2y^2+3xy \\=5^2-2(-2)^2+3(5)(-2) \\=25-2(4)+(-30) \\=25-8-30 \\=17-30 \\=-13$
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