(xy^2-2xy+x)乘以y^3-y分之y^3+y^2

来源：学生作业帮编辑：神马作文网作业帮分类：数学作业时间：2024/11/20 22:03:21

(xy^2-2xy+x)乘以(y^3-y)分之(y^3+y^2)
=x(y^2-2y+1)*[y^2(y+1)]/[y^2(y-1)]
=x(y-1)^2*[y^2(y+1)]/[y^2(y-1)]
=x(y-1)(y+1)

（xy-x^2)乘以(xy)/(x-y) (-3分之1xy)的平方×[xy(2x-y)-2x(xy-y的平方)] 已知X+Y分之XY等于3,求-X+3XY-Y分之2X-3XY+2Y 已知x+y分之xy=2,那么3x-5xy+3y分之3xy-x-y= 已知X+Y分之XY=2,求-X+3XY-Y分之3X+5XY+3Y 若x+y分之xy=2,则-x+3xy-y分之3x-xy+3y=多少? （xy-x²）除以xy分之x²-2xy+y²乘以x²分之x-y 已知x-y=4xy,求x-2xy-y分之2x+3xy-2y的值! (x+2y-3xy+2x+y-xy)-(-2-y+xy),其中x+y=2分之1,xy=-2分之1 (x-2xy)*(-xy+2y*y)-(3x*x-2xy)(x-9xy+6y*y) 2x+2y分之3y+x^2+xy分之2xy 计算：2x+2y分之3y + x²+xy分之2xy