作业帮聪明的哥哥姐姐们,帮我算道数学题吧[(1/a-2)+(a/a²+a-2)]÷(a/a+2)²注释：(1/a-2)的意思为：a-2分之1以后依次类推原式应为这样[1/（a-2)+a/（a²+a-2)]÷(a/a+2)²
来源：学生作业帮助网 编辑：作业帮 时间：2024/04/26 06:06:17
![聪明的哥哥姐姐们,帮我算道数学题吧[(1/a-2)+(a/a²+a-2)]÷(a/a+2)²注释：(1/a-2)的意思为：a-2分之1以后依次类推原式应为这样[1/（a-2)+a/（a²+a-2)]÷(a/a+2)²](/uploads/image/z/13332488-32-8.jpg?t=%E8%81%AA%E6%98%8E%E7%9A%84%E5%93%A5%E5%93%A5%E5%A7%90%E5%A7%90%E4%BB%AC%2C%E5%B8%AE%E6%88%91%E7%AE%97%E9%81%93%E6%95%B0%E5%AD%A6%E9%A2%98%E5%90%A7%5B%281%2Fa-2%29%2B%28a%2Fa%26sup2%3B%2Ba-2%29%5D%C3%B7%28a%2Fa%2B2%29%26sup2%3B%E6%B3%A8%E9%87%8A%EF%BC%9A%281%2Fa-2%29%E7%9A%84%E6%84%8F%E6%80%9D%E4%B8%BA%EF%BC%9Aa-2%E5%88%86%E4%B9%8B1%E4%BB%A5%E5%90%8E%E4%BE%9D%E6%AC%A1%E7%B1%BB%E6%8E%A8%E5%8E%9F%E5%BC%8F%E5%BA%94%E4%B8%BA%E8%BF%99%E6%A0%B7%5B1%2F%EF%BC%88a-2%29%2Ba%2F%EF%BC%88a%26sup2%3B%2Ba-2%29%5D%C3%B7%28a%2Fa%2B2%29%26sup2%3B)
聪明的哥哥姐姐们,帮我算道数学题吧[(1/a-2)+(a/a²+a-2)]÷(a/a+2)²注释：(1/a-2)的意思为：a-2分之1以后依次类推原式应为这样[1/（a-2)+a/（a²+a-2)]÷(a/a+2)²
聪明的哥哥姐姐们,帮我算道数学题吧
[(1/a-2)+(a/a²+a-2)]÷(a/a+2)²
注释：
(1/a-2)的意思为：a-2分之1
以后依次类推
原式应为这样[1/（a-2)+a/（a²+a-2)]÷(a/a+2)²
聪明的哥哥姐姐们,帮我算道数学题吧[(1/a-2)+(a/a²+a-2)]÷(a/a+2)²注释：(1/a-2)的意思为：a-2分之1以后依次类推原式应为这样[1/（a-2)+a/（a²+a-2)]÷(a/a+2)²
[1/（a-2)+a/（a²+a-2)]÷(a/a+2)²
=[(1/a-2)+(a+a-2)]÷(1+2)²
=[(1/a-2)+(2a-2)]÷9
=[(1/a-2)+2a-2]÷9
=[(1/a-2)+(1/2a)-2] ÷9
=[(1/a-2)+(a-2/2a×（a-2）-2] ÷9
=[(1/a-2)+(a-2/2a×a-4a)-2]÷9
=1+2a×-4a/9a-18
=[(1/a-2)+(a+a-2)]÷(1+2)²
=[(1/a-2)+(2a-2)]÷9
=[(1/a-2)+2a-2]÷9
=[(1/a-2)+(1/2a)-2] ÷9
=[(1/a-2)+(a-2/2a×（a-2）-2] ÷9
=[(1/a-2)+(a-2/2a×a-4a)-2]÷9
=1+2a×-4a/9a-18
你是几年级的啊？看不懂啊！
=[(1/a-2)+(a-2/2a×a-4a)-2]÷9
=1+2a×-4a/9a-18
说清楚啊a/a²+a-2里面a²+a-2有括号吗