若最简二次根式
与
可以合并,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e63c6d29688509feea8149cd86c45a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cde029ac94c601540583c64bc48c17bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
更新时间:2023-07-14 11:10:28
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【推荐1】下列二次根式中:①
;②2
;③
;④
,是最简二次根式的是_____ (填序号).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b349899258f7e34779a465212d6bcf48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38fda303240e35a04641e7e602dcc414.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01961669cd597f61fa48e9853d678bb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cf33c54dac0b9fc5d1800e5df36619b.png)
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