若x^2-6x+4y^2+4y+10=0则x^2+y^2=

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 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 已知：4x^2+y^2-4x-6y+10=0,求y/x-x/y的值 若x^2+y^2-6x+4y+13=0 求x+y 因式分解 若 x^2+4x+y^2-6y+13=0 求y^x 若x.y满足条件2x+y-12=0,x-4y+10 若x²+y²+6x-2y+10=0 则分式x-2y/x³-4x²y+4xy²的值 若2x-3y+4=0则x（x*x-1)+x(5-x*x)-6y+7 已知x^2+y^2+13-4x+6y=0,求(2x-y)^2-2(2x-y)(x+2y)+(x+2y)^2 若x^2-4x+y^2-10y+29=0,求x^2y^2+2x^3y^2+x^4y^2的值 已知x^2+y^2-2x-6y+10=0,求4(x^2+y)(x^2-y)-(2x^2-y)^2 若实数X,Y满足X²+Y²+4X-2Y +1=0,则X²-6X+Y²-2Y的最大值是多少 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 若x^2-6x+4y^2+4y+10=0,则x^2+y^2=x^2-6x+4y^2+4y+10=0,x^2+y^2= 若4x^2+y^2-4x+6y+10=0,则x^y的值为?若4x^2+y^2-4x+6y+10=0,则x^y的值为（ ） {3(x+y)-4(x-y)=4 {x+y/2 + x-y/6=1 （x+y）/2- x-y/2=6 3(x+y)=4(x-y)