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: 14

Answer

$-38$

Work Step by Step

Substitute the given values of the variables to obtain: $xy-x^2z+yz^2 \\=2(-3)-2^2(-4)+(-3)(-4)^2 \\=-6-4(-4)+(-3)(16) \\=-6-(-16)+(-48) \\=-6+16-48 \\=10-48 \\=-38$
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