x^(2)-y^(2)+5x+8y-4=0" represents "

Show that the equation 3x^(2)+4y^(2)-12x-8y+4=0 represents an ellipse. Find the focus also

The equation 5x ^(2) + y^(2) + y=8 represents

The equation 5x ^(2) + y^(2) + y=8 represents

If the equation 2x^(2)+4xy-2y^(2)+4x+8y+k=0 represents a pair of line, then k=

If the equation a^(2) x^(2) + (a^(2) - 5a + 4) xy + (3a - 2) y^(2) - 8x + 12y - 4 = 0 represents a circle , then : a =

Show that the equation x^2-2y^2-2x+8y-1=0 represents a hyperbola.

The equation 8x^2+12y^2-4x + 4y-1=0 represents

3x^2+4y^2-6x+8y+k=0 represents an ellipse with eccentricity 1/2,

The equation of directrices of the hyperbola 5x^(2) -4y^(2) -30x -8y -39 =0 are

The equation of directrices of the hyperbola 5x^(2) -4y^(2) -30x -8y -39 =0 are