a-2/a²-1×a³+2a²+a/a²-2a
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/30 02:11:12
![a-2/a²-1×a³+2a²+a/a²-2a](/uploads/image/z/1672913-65-3.jpg?t=a-2%2Fa%26%23178%3B-1%C3%97a%26%23179%3B%2B2a%26%23178%3B%2Ba%2Fa%26%23178%3B-2a)
a-2/a²-1×a³+2a²+a/a²-2a
a-2/a²-1×a³+2a²+a/a²-2a
a-2/a²-1×a³+2a²+a/a²-2a
这是合并同类项的吧?
a-2/a²-1×a³+2a²+a/a²-2a
=a-2a-2/a²+a/a²-1×a³+2a²
=-a-(2-a)/a²-a³+2a²
=-a-(2-a)/a²+a²(2-a)
=(2-a)(a²-1/a²)-a