计算 (-4/3xy)(-3x^2y)^2=( )
计算 (-4/3xy)(-3x^2y)^2=( )
计算3xy[2xy-x(y-2)+x-1]
计算:3xy[2xy-x(y-2)+x]
计算 2xy[4x²y²-3y(xy+x²y)-xy²]
计算:(-3xy)^3*(-4/3x^2y)
计算:(-3x^2y)(1/3xy^2)=?
计算4xy+(x-2y)的平方+(x+3y)(3y-x)
计算:(-3x^y)(1/3xy^2)=?
计算:(3x^2-2y^2)-(-x^2+2xy+y^2)-(x^2-4xy+3y^2)
(-3x^y+2xy)-( )=4x^+xy
已知x-y=4xy,则2x+3xy-2yx-2xy-y
计算:(5-xy/x^3-x^2y)/(1-5/xy)^2*(y-x)^3