Answer
$0$
Work Step by Step
$$\frac{2x+y}{xy-2x}$$
for $x=-2$ and $y=4$ $$=\frac{2\times(-2)+4}{(-2)\times4-2\times(-2)}$$ a negative times a negative gives a positive: $$=\frac{(-4)+4}{(-8)+4}$$ $$=\frac{0}{(-4)}$$ $$=0$$
College Algebra (6th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-32178-228-3
ISBN 13:
978-0-32178-228-1
Chapter P - Prerequisites: Fundamental Concepts of Algebra - Exercise Set P.1 - Page 17: 16
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