SOLUTION: 2x^2 + 3xy-4y^2 when x=2 and y= -4

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Question 59277: 2x^2 + 3xy-4y^2 when x=2 and y= -4
Answer by funmath(2933) About Me  (Show Source):
You can put this solution on YOUR website!
2x%5E2%2B3xy-4y%5E2 when x=2 and y= -4
2%282%29%5E2%2B3%282%29%28-4%29-4%28-4%29%5E2
2%284%29%2B6%28-4%29-4%2816%29
8-24-64
8-88
highlight%28-80%29
Happy Calculating!!!