已知x+y=10,x^3+y^3=100,求x^5+y^5的值

已知:3x-5y=0,求x/y,x-y/y,x-y/x 已知x-y/x+y=3,求代数式5(x-y)/x+y-x+y/2(x-y) 已知3x =2y 求x/x+y+y/x-y-y²/x²-y² 已知x-y=3,求[（x+y)(x-y)-(x-y)^2+2y(x-y)]除以的值 已知|x|=2,|y|=3,|x+y|=-(x+y)求x-y 已知|3x-y|+|x+y|=0,求x-y除以x*y的值. 已知x/5=y/3,则(x/x+y)+(y/x-y)-(yxy/xxx-yxy) 已知x+y=10,x^3+y^3=400,求x^2+y^2 已知x-y-3绝对值+(2x+2y+10)的平方=0,则(x+y)(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x-y=3 ,(x+y）（x+y+10)+25=0 求x,y的值 已知实数x,y满足2x+5y>=10;2x-3y>-6;2x+y 已知2y-x=-3,求[4y(2x-y)-2x(2x-y)]/(2x-y 已知2x=3y,则y分之x=< >,y分之x+y=< >. 已知x+y=10,x^3+y^3=100,求x^2+y^2的值． 1.已知x++y=10,x^3+y^3=100,求x^2+y^2的值 已知x+y=10,x^3+y^3=100,求x^5+y^5的值