SOLUTION: x^2+xy-y^2 __________ x+y when x=6 and y=-2

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Question 35707This question is from textbook Introductory algebra
: x^2+xy-y^2
__________
x+y
when x=6 and y=-2 This question is from textbook Introductory algebra

Answer by fractalier(6550) About Me  (Show Source):
You can put this solution on YOUR website!
Let us evaluate
(x^2 + xy - y^2) / (x + y) when x = 6 and y = -2
The technique is to merely to plug in 6 for every x and -2 for every y...we get
(36 + (-12) - 4) / (6 - 2)=
20 / 4 =
5