College Algebra (6th Edition)

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: 16

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: $$=\frac{(-4)+4}{(-8)+4}$$ $$=\frac{0}{(-4)}$$ $$=0$$
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