百度学帮网,学生作业习题慧海网手机作业频道
化简 x-y+(2y²)/(x+y)
来源:学生学帮网 编辑:
学帮网
时间:2024/05/28 14:17:12
化简 x-y+(2y²)/(x+y)
=[(x-y)(x+y)+2y²]/(x+y)
=(x²+y²)/(x+y)