4x^2 + 4y^2 +20x -16y + 37 =0

I completed the square and got:

(2x+10)^2 + (2y-8)^2 =127

x int ?

y int ?

Vertices ?

Center (-5, 4)

Domain ?

Range ?

I tried making y=0 to find the x intercepts but didn't work out. Same thing for y intercepts

Completely lost....