1,x2+2x+y2+3y+1=0,2,x2-5x+y2+6y+3=0 标准方程,圆心,半径

1,x2+2x+y2+3y+1=0,2,x2-5x+y2+6y+3=0 标准方程,圆心,半径
1,x2+2x+y2+3y+1=0,2,x2-5x+y2+6y+3=0 标准方程,圆心,半径

1,x2+2x+y2+3y+1=0,2,x2-5x+y2+6y+3=0 标准方程,圆心,半径
(x+1)²-1+(y+3/2)²-9/4+1=0
(x+1)²+(y+3/2)²=9/4
(x+1)²+(y+3/2)²=(3/2)²
圆心为(-1,-3/2),半径为3/2
x2-5x+y2+6y+3=0
(x-5/2)²-25/4+(y+3)²-9+3=0
(x-5/2)²-25/4+(y+3)²-9+3=49/4
(x-5/2)²+(y+3)²=(7/2)²
圆心为(5/2,-3),半径为7/2