Answer
$-8$
Work Step by Step
Substituting $x$ with $-1$ and $y$ with $-2$, the given expression, $
5x^2y-xy+y^2
,$ evaluates to
\begin{array}{l}
5(-1)^2(-2)-(-1)(-2)+(-2)^2
\\\\=
5(1)(-2)-2+4
\\\\=
-10-2+4
\\\\=
-8
.\end{array}
Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)
by Bittinger, Marvin L.; Ellenbogen, David J.; Johnson, Barbara L.
Published by
Pearson
ISBN 10:
0-32184-874-8
ISBN 13:
978-0-32184-874-1
Chapter 1-4 - Cumulative Review - Page 301: 2
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