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 - Study Summary - Practice Exercises - Page 297: 28



Work Step by Step

Substitute the given values of the variables to obtain: $xy-y^2-4x \\=-2(3)-3^2-4(-2) \\=-6-9-(-8) \\=-6-9+8 \\=-15+8 \\=-7$
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