作业帮计算：[(x+y/x-y)^2·(2y-2x/3x+3y)]-[(x^2/x^2-y^2)/(x/y)]今天止
来源：学生作业帮助网 编辑：作业帮 时间：2024/05/11 00:02:28
![计算：[(x+y/x-y)^2·(2y-2x/3x+3y)]-[(x^2/x^2-y^2)/(x/y)]今天止](/uploads/image/z/247427-35-7.jpg?t=%E8%AE%A1%E7%AE%97%EF%BC%9A%5B%28x%2By%2Fx-y%29%5E2%C2%B7%282y-2x%2F3x%2B3y%29%5D-%5B%28x%5E2%2Fx%5E2-y%5E2%29%2F%28x%2Fy%29%5D%E4%BB%8A%E5%A4%A9%E6%AD%A2)
计算：[(x+y/x-y)^2·(2y-2x/3x+3y)]-[(x^2/x^2-y^2)/(x/y)]今天止
计算：[(x+y/x-y)^2·(2y-2x/3x+3y)]-[(x^2/x^2-y^2)/(x/y)]
今天止
计算：[(x+y/x-y)^2·(2y-2x/3x+3y)]-[(x^2/x^2-y^2)/(x/y)]今天止
[(x+y/x-y)^2*(2y-2x/3x+3y)]-[(x^2/x^2-y^2)/(x/y)]
={[(x+y)/(x-y)]^2*(2y-2x)/(3x+3y)}-[x^2/(x^2-y^2)*y/x]
=-{[(x+y)/(x-y)]^2*2(x-y)/3(x+y)}-[x^2/(x^2-y^2)*y/x]
=-(x+y)/(x-y)-[x/(x^2-y^2)*y]
=-(x+y)/(x-y)-[xy/(x^2-y^2)]
=-(x+y)^2/(x^2-y^2)-[xy/(x^2-y^2)]
=-[(x+y)^2+xy]/(x^2-y^2)]
=-(x^2+y^2+2xy+xy)/(x^2-y^2)
=-(x^2+y^2+3xy)/(x^2-y^2)
yxfh ％fhcg fg yxfh y x
计算:y-x分之x+y+x-y分之y-y-x分之2x-y
计算：[(x+y)(x-y)-(x-y)^2+2y(x-y)]/(-2y)
计算:(x+2y)(2x-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)^2*(y-x)^2*(x-y)^6
计算(x-y)(y^2-x^2)(-x-y)
计算(x+y)(x+y)^2(-x-y)^3
3x(x-y)+2y(x-y) 计算
计算：（x-y）^2-(x+y)(x-y)
（x-2y）(x+y)+（x+y）计算
计算[2x^2-(x+y)(x-y)][(-x-y)(y-x)+2y^2]
计算：x+2y/x-y+2x/y-x-3y/x-y
计算2/3x-2/x+y(x+y/3x-x-y)/x-y/x
计算2x/x-y
计算2x/1-x+y/1·（2x/x+y-x-y）