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: 13

Answer

$-68$

Work Step by Step

Substitute the given values of the variables to obtain: $xy^2z-z \\=2(-3)^2(-4)-(-4) \\=2(9)(-4)+4 \\=-72+4 \\=-68$
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