已知|2x-y-2|+(3x+5y+10)的2次方求(x-1)的2010次方+(y+1)的2011次方的值已知|2x-y-2|+(3x+5y+10)=0的2次方求(x-1)的2010次方+(y+1)的2011次方的值

已知x-y/x+y=3,求代数式5(x-y)/x+y-x+y/2(x-y) 已知x,y满足约束条件 2x+5y>=10 2x-3y>=-6 2x+y 已知x,y满足约束条件{2x+5y>=10,2x-3y>=-6,2x+y 已知实数x,y满足2x+5y>=10;2x-3y>-6;2x+y 已知x-y=3,求[（x+y)(x-y)-(x-y)^2+2y(x-y)]除以的值 已知3x =2y 求x/x+y+y/x-y-y²/x²-y² 已知X,Y,满足(X+3Y)(X-3Y)=-10(Y^2-6/5)和2X(Y-1)+4(1/2X-1)=0 （X+Y)^2 X^2Y+XY^2注：*/* 是分数 已知|x|=2,|y|=3,|x+y|=-(x+y)求x-y 5x^3y(x-y)^3-10x^4y^3(y-x)^2因式分解 5x^3y(x-y)^3-10x^4y^3(y-x)^2 (x+5y)^+(2x+10y)(3x-y)+(3x-y)^ (x+5y)²-(2x+10y)(3x-y)+(3x-y)² 5X^3Y(X-Y)-10X^4Y^3(Y-X)^2因式分解 已知x+y=10,x^3+y^3=400,求x^2+y^2 已知2x-y=-3,求代数式5(x-3y)-2(x-7y) 已知x-y=3则5(x-y)-3x+3y-2= 已知x-y=3则5(x-y)-3x+3y-2= 已知5|x+y-3|+(x-2y)²=5,求x+y的值