3x^2y-6xy+3y 怎么算?忘了...

3个回答

(-xy^3)^2/(x^2y)^3*x^2y怎么算
刚刚忘记问了,X^3+y^3+3x^2Y-5Xy^2=(X-Y)(X^2+4XY-Y^2) 这步是怎么算出来的,有什么简
因为3xy(2x-y)=6x^2y-3xy^2,所以因式分解6x^2y-3xy^2=
3x平方-7xy+2y平方+8x-y-3因式分解怎么算,
(3xy-9x2-2y2-6xy)-(6x2+2xy-3xy-y)
(-3x^2)^3*(-4y^3)^2/(6x^2y)^3怎么算
5x^3y*(-3y)^2+(-6xy)^2*(-xy)+xy^3*(-4x^2)
(-2x^2y^)2乘（4xy^3）怎么算
(3x^2y^3)/(2xy)^2=?(3x^2y^2)/(xy)*(1/y)=?x^2y-5x^2y+3x^y=?(6
(2x^2y+3xy^2)-(6x^2y-3xy^2)