计算-(x-5y)-(-3x+2y)
计算:(-x-2y) * (3x-y)
计算(x+y)(x+y)^2(-x-y)^3
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:(3x-y)2-(2x+y)2+5x(y-x)
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)+【-
(3x-y)^2+(2x+3y)(-2x-3y)+5xy 计算
计算 2(x+y)*3(x+y)*5(x+y)^5
方程式计算5X-2=Y 4X+3=Y 求X.Y
计算:(X+Y)^5÷(-X-Y)^3*(X-Y)^2
计算:(x+y)^2×(-x-y)^3×[-3/4(x-y)^3]×5/6(y-x)^2
计算【3(x-y)^2(x+y)^-2/4(x+y)^2(x-y)^-2】^-2
计算(2x-3y)(x+4y)-(3x+y)(x-2y)