计算:8x/3y·(-3y/2x²)³.
计算:8x/3y·(-3y/2x²)³.
(x-y)·2(x-y)²·3(x-y)³ 计算
计算:(-x-2y) * (3x-y)
计算(x+y)(x+y)^2(-x-y)^3
计算6x³y^6÷(1/2)y³÷(-3x²y)-(12x^4y^6-8x²y^
计算:(-x)²x³·(-2y)³-(-2xy)²·(-3x)³y.
8x²·(-3x/4y³)·(-6z/x²y)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)
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)+【-
(x+y)^2-(3x-2y)^2计算
计算3x[xy-2x(1/y-x/3]+3y(x²-y²)
计算3x/8y×16y²/27x² (2xy-x²)÷x-2y/xy 2x-6/x