x2+y2−10x−6y−33=0x^{2}+y^{2}-10 x-6 y-33=0x2+y2−10x−6y−33=0
x2+y2−10x−6y+33=0x^{2}+y^{2}-10 x-6 y+33=0x2+y2−10x−6y+33=0
x2+y2+10x+6y−33=0x^{2}+y^{2}+10 x+6 y-33=0x2+y2+10x+6y−33=0
22+y2+10x+6y+33=02^{2}+y^{2}+10 x+6 y+33=022+y2+10x+6y+33=0