[x(x^2y^2-xy)-y(x^2-x^3y)]3x^2y计算,
(x^2+xy/x-y)/(xy/x-y)计算
计算(x^8-x^7y+x^5y^3-x^4y^4+x^3y^5-x^y^7+y^8)(x^2+xy+y^2)
计算:(x^2-y^2/xy)^2/(x+y)^2*(x/x-y)^3
计算3x[xy-2x(1/y-x/3]+3y(x²-y²)
[x(x^2y^2-xy)-y(x^2-x^3y)]/3x^2y
计算:[x(x^2y^2-xy)-y(x^2-x^3y)]/3x^2y
计算[x(x^2y^2-xy)-y(x^2-x^3y)]/3x^2y
[x(x^2y^2-xy)-y(x^2-x^3y)]3x^2y计算,
计算(x+y)(x+y)^2(-x-y)^3
计算:(-x-2y) * (3x-y)
有这样一道题:"计算(2*x*x*x-3*x*x*y-2*x*y*y)-(x*x*x-2*x*y*y+y*y*y)+【-
计算:(x+y/x-y)÷(xy+x^2)