" 114."2x+4y-8xy-1=?

Add : 14x +10y - 12xy - 13, 18 - 7x - 10y + 8xy, 4xy

How many integer pairs (x,y) satisfy x^(2) + 4y^(2) -2xy -2x - 4y -8=0 ?

Equation of the rectangular hyperbola whose focus is (1,-1) and the corresponding directrix is x-y+1=0 . a. x^(2)-y^(2)=1 b. xy=1 c. 2xy-4x+4y+1=0 d. 2xy+4x-4y-1=0

The equation oi the conic with focus at (1,-1) directrix along x-y+1=0 and eccentricity sqrt(2) is xy=1 b.2xy+4x-4y-1=0cx^(2)-y^(2)=1 d.2xy-4x+4y=1=0

If 1/x-1/y=4 then (2x+4xy-2y)/(x-y-2xy)=

What are the factors of x^(2)+4y^(2)+4y-4xy-2x-8 ?