计算√3x^3y×√6y÷√2x
计算:(2/3x√9x+6x√y/x)+(y√x/y-√1/x)
计算:(x-y)^7÷(y-x)^6+(-x-y)^3÷(x+y)^2
计算√3x^3y×√6y÷√2x
[(2x+y)(x-3y)+y(x+3y)]÷(2x)计算,
计算:(-x-2y) * (3x-y)
计算(x+y)(x+y)^2(-x-y)^3
计算:(x—y)^7÷(y—x)^6+(—x—y)^3÷(x+y)^2
计算6√3x²y³*3√12x四次方/y(x>0,y>0)
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:(3x-4y)-[-(2y+x)+(x-3y)]-6x
计算:(x+2y)(3x-5y)-(6x的四次方y²-2x²y²)÷(2x²y&
计算:1.(x-1)^2+2(1-x) 2.(x-y)/(x+3y)÷(x^2-y^2)/(x^2+6xy+9y^2)-