Find the parametric representation of the following circle
`2x^2 + 2y^2 - 5x - 7 y - 3 =0`.

Find the parametric representation of the following circle x^2 + y^2=9 .

Find the parametric representation of the following circle 3x^2 + 3y^2=4 .

Find the parametric representation of the following circle x^2 + y^2+2x-4y-1=0 .

Find the parametric representation of the following circle (x-2)^2+(y-3)^2 =5 .

Find the parametric representation of the following circle x^2 + y^2+2gx +2fy+c =0 .

Find the parametric representation of the circle x^2 + y^2 - 2x + 4y -4=0 .

Find the parametric equation of the circles : 2x^2 + 2y^2-5x-7y-3=0 .

Find the parametric equation of the circles : 3x^2 + 3y^2+4x-6y-4=0 .

Find the parametric form of the equation of the circle x^2+y^2+p x+p y=0.

Find the equation of the circle concentric with the circle x^(2) + y^(2) - 8x + 6y -5 = 0 and passing through the point (-2, -7).