x^2+2x+y^2-6y+10=0,求x^2+2y
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x^2+2x+y^2-6y+10=0 求(x+y)^2
已知:4x^2+y^2-4x-6y+10=0,求y/x-x/y的值
X^2+y^2-2x+6y+10=0,求x+y的值
已知实数x, y满足x²+y²-2x+6y+10=0,求y∧-x.
x方-2x+y方+6y+10=0 求x,y
已知X-Y/X+Y=3,求代数式2(x-y)/X+Y-3X+Y/X+Y
已知x-y/x+y=3,求代数式5(x-y)/x+y-x+y/2(x-y)
已知2x-y=10,求[(x²+y²)-(x-y)²+2y(x-y)]/4y
已知x*x-4xy+4y*y=0 求[2x(x+y)-y(x+y)]/(4x*x-4xy+y*y)的值?
x²-2x+y²+6y+10=0,求—9(x+y)²+(3x-2y)(2y+3x)的值