圆x^2+y^2+2x-6y+1=0与x^2+y^2-4x+2y-11=0,求两圆的公共弦所在的直线方程及公共弦长

x-y/x-x+y/y-(x+y)(x-y)/y² y/x=2 2(x+y)-3(x-y)=1 6(x+y)+(x-y)=51 {3(x+y)-4(x-y)=4 {x+y/2 + x-y/6=1 {6(x-y)-7(x+y)=21 {2(x-y)-5(x+y)=-1 2x-y=0与x+y=10 已知实数x,y满足关系式：x^2+y^2-6x-4y+12=0 1,求x-y的最大值与最小值 2,求x^2+y^2的最大与最小值好想是要用到圆的方程 已知圆x^2+y^2+x-6y+m=0与直线x+2y-3 【2(x-y)(x-y)(x-y)-8(x-y)(x-y)(x+y)+6y(x-y)(x-y)]/2(x-y)(x-y) {x+y=1 ,xy=-6{x(2x-3)=0,y=x²-1{(3x+4y-3)(3x+4y+3)=0,3x+2y=5{(x-y+2)(x+y)=0,x²+y²=8{(x+y)((x+y-1)=0,(x-y)(x-y-1)=0 x*x+2x-y*y+6y-8=0,x+y不等于2,求x-y的值 已知X*X+Y*Y+6X-8Y+25=0 求（Y/X)+(X/Y)-2=? 若2x-3y+4=0则x（x*x-1)+x(5-x*x)-6y+7 设x大于1,y大于0,x^y+x^-y=2根号二,x^y-x^-y等于? 圆x^2+y^2-4x+2y+4=0与圆x^2+y^2+2x-6y-26=0的位置关系 圆x^2+y^2+4x-6y+4=0与圆x^2+y^2+2x-4y-4=0的交点坐标 判定圆x^2+y^2-6x+4y+12=0与圆x^2+y^2-14x-12y+14=0是否相切? 圆x^2+y^2-8x+6y=0与x^2+y^2+4x-6y-12=0关于直线-----对称 两圆X^2+Y^2-4X+2Y+1=0与X^2+Y^2+4X-4Y-1=0的公切线有几条