SOLUTION: Is 4x^2-y^2+8x-4y-4=0 is a hyperbola?

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Question 301529: Is 4x^2-y^2+8x-4y-4=0 is a hyperbola?
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Yes, it is.
The signs of the x^2 and y^2 terms are different --> hyperbola