因为3xy(2x-y)=6x^2y-3xy^2,所以因式分解6x^2y-3xy^2=

因为3xy(2x-y)=6x^2y-3xy^2,所以因式分解6x^2y-3xy^2= 因式分解 x-xy+3y-3x 2x+xy-y-4x+5y-6 1、(-7x^y)(2x^y-3xy^3+xy) 2、((x-y)^6)/((y-x)^3)/(x-y) 化简：x-y/x+3y÷x^-y^2/x^2+6xy+9y^2-(xy/x+y) (x-2xy)*(-xy+2y*y)-(3x*x-2xy)(x-9xy+6y*y)答案应为-2x-x*x-3x， 已知xy=-2,x-y=3,求（x+y)（x-y)-y^2+（x-y)^2-（6x^2y-2xy^2)÷2y x*x+xy=3,xy+y*y=2,则x*x+2xy+y*y=________? 已知:x/y=-2,求x^2-2xy-3y^2/x^-6xy 3y/x*x-y*y+x/x*x-2xy+y*y+6y*y/x*x*x-x*x*y-xy*y+y*y*y等于多少? (-x+2y)(2x+y)-(2x+y)(y-2x)-3xy=?因式分解 x+y=-3 xy+x+y=-2 x/y+y/x=? 已知xy/x+y=6,求3x-2xy+3y/-x+3xy-y的值. 已知(xy)/(x+y)=6求(3x-2xy+3y)/(-x+3xy-y)的值. 化简求值x-4y/2x-7xy+3y×x-2xy-3y/2x+3xy-2y÷3x-6y/4x-4xy+y,其中：x=1999,y=-1 诺x+y=6,xy=4 求(5x-4y-3xy)-(8x-y+2xy) (x^3-2x^2+xy^2)/(x-y)+(x+y)(y-x)=? x^+2xy+y^+4=16 x^-2xy+y^=16 求(3xy+6y^)+|x^-(2xy+2y^-3x^)|的值 2(x*x-3xy-2y*y+2)- =-4y*y-6xy+3x