y^2-2y+x^2-6x^2+10=0
已知x^2+y^2--6x--2y+10=0,求x+y/x--y
已知x^2-2x+y^2+6y+10=0,求分式x-y/x+y的值
已知:4x^2+y^2-4x-6y+10=0,求y/x-x/y的值
已知实数x, y满足x²+y²-2x+6y+10=0,求y∧-x.
已知x^2+2x+y^2-6y+10=0 求(x+y)^2
X^2+y^2-2x+6y+10=0,求x+y的值
7.X*X+2X+Y*Y-6Y+10=0,则xy=?
已知:x²y²-2x+6y+10=0则x+y=
x²-2x+y²+6y+10=0,则x+y=?
x方-2x+y方+6y+10=0 求x,y
【2(x-y)^3-8(x-y)^2(x+y)+6y(x-y)^2】/2(x-y)^2=
先化简,在求值;2(x-y)^2+(x+y)(x-y),其中x^2+y^2-6x+2y+10=0