x2+y2−6x−5y−1=0x^{2}+y^{2}-6 x-5 y-1=0x2+y2−6x−5y−1=0
x2+y2+6x+5y−1=0x^{2}+y^{2}+6 x+5 y-1=0x2+y2+6x+5y−1=0
x2+y2+6x−5y−1=0x^{2}+y^{2}+6 x-5 y-1=0x2+y2+6x−5y−1=0
x2+y2+6x−5y+1=0x^{2}+y^{2}+6 x-5 y+1=0x2+y2+6x−5y+1=0