计算：x+2y/x-y+2x/y-x-3y/x-y
来源：学生作业帮助网 编辑：六六作业网 时间：2024/05/03 14:39:11
计算：x+2y/x-y+2x/y-x-3y/x-y计算：x+2y/x-y+2x/y-x-3y/x-y计算：x+2y/x-y+2x/y-x-3y/x-y原式=(x+2y)/(x-y)-2x/(x-y)-
计算：x+2y/x-y+2x/y-x-3y/x-y
计算：x+2y/x-y+2x/y-x-3y/x-y
计算：x+2y/x-y+2x/y-x-3y/x-y
原式=(x+2y)/(x-y)-2x/(x-y)-3y/(x-y)
=(x+2y-2x-3y)/(x-y)
=(-x-y)/(x-y)
答案是（-2xy^2-y^2+2x^2）/(xy)
计算2/3x-2/x+y(x+y/3x-x-y)/x-y/x
计算：x+2y/x-y+2x/y-x-3y/x-y
计算:(x+3y)(2x-y)
计算:(2x-3y)(x+y)
计算:(-x-2y) * (3x-y)
计算：(x+y)-3(x-2y).
计算(x+y)(x+y)^2(-x-y)^3
3x(x-y)+2y(x-y) 计算
计算:y-x分之x+y+x-y分之y-y-x分之2x-y
计算（2x-3y)(x+4y)-(3x+y)(x-2y)（2x-3y)(x+4y)-(3x+y)(x-2y)
计算2x/x-y
计算:y×(y/x)^3÷[-(x^2)/y]^-2
计算：y(x-y)^2+(y-x)^3=?
计算2x/x^2-y^2 3x/y^2-x^2 y/(x y)(y-x)快!
计算：x(x-3y)(5x-2y)
计算[2x^2-(x+y)(x-y)][(-x-y)(y-x)+2y^2]
计算:(x+2y)(2x-y)
计算：[(x+y)(x-y)-(x-y)^2+2y(x-y)]/(-2y)