Odpowiedzi

2009-12-17T00:13:34+01:00
X^+y^+8x-12y+3=0


x²+8x + y²-12y +3=0

(x+4)²-16 + (y-6)²-36 +3=0
(x+4)² + (y-6)²=49
S(-4,6), r=7
1 5 1