x^2+4y^2-6x+4y=-10求x,y的值

x^2+4y^2-6x+4y=-10求x,y的值 已知：4x^2+y^2-4x-6y+10=0,求y/x-x/y的值 x^2+4y^2-6x+4y+10=0,求x^4-y^4/(x+2y)(x-2y)*x+2y/xy^2+y^3除以（x^2+y^2/y)^2的值 x,y 满足x(x-2)-y(y-6)=-10,求x,y的值 如果|X|=4 |Y|=2 且|X+Y|=X+Y 求X+Y 已知x^2+y^2+13-4x+6y=0,求(2x-y)^2-2(2x-y)(x+2y)+(x+2y)^2 已知x^2+y^2-2x-6y+10=0,求4(x^2+y)(x^2-y)-(2x^2-y)^2 x²+y²-2x-6y+10=0,求4(x²+y)(x²-y)-(2x²-y)² 已知x²+y²-2x-6y+10=0,求4(x²+y)(x²-y)-(2x²-y)² 1.(x-2y)(x+2y)-(x平方+y)(x平方-y) 2.(2x-y)(y+2x)-(2y+x)(2y-x)3.已知：x+y=6,x平方-y平方=48,求x,y的值4.x平方-2x分之x+2 -- x平方-4x+4分之x-1 求值域 1,y=(x+2)/(x*x+3x+6) 2,y=3x/(x*x+4) 已知x*x-4xy+4y*y=0 求[2x(x+y)-y(x+y)]/(4x*x-4xy+y*y)的值? 已知x.x+y.y+8x+6y+25=0,求代数式(x.x-4y.y)/(x.x+4xy+4y.y)-x/(x+2y)的值 已知2y-x=-3,求[4y(2x-y)-2x(2x-y)]/(2x-y 已知x/y=2,求2x(x+y)-y(x+y)/4x²-4xy+y² 2x-y=2,求[(x²+y²)-(x-y)²+2y(x-y)]÷4y 已知,x^2+y^2-6x+2y+10=0,求(x+2y)^2(x-2y)^2-(x-2y)(x^2+4y^2)(x+2y)的值. 若(x*x+y*y)(x*x+y*y)-4x*x*y*y=0,求代数式(x*x+5xy+y*y)/(x*x+2xy+y*y)的值