(1)计算:
;
(2)下列是小红化简整式的过程,仔细阅读并解答所提出的问题.
解:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ce30f41798c6cf32f2fee1158be0275.png)
第一步
第二步
①小红的化简过程从第______步开始出现错误;
②写出正确化简的过程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/666d760861d271db426e6677ee7a82e2.png)
(2)下列是小红化简整式的过程,仔细阅读并解答所提出的问题.
解:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ce30f41798c6cf32f2fee1158be0275.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df604d18309715c95f84e26285d55520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/771df37a312dac1fb332a31a10340c29.png)
①小红的化简过程从第______步开始出现错误;
②写出正确化简的过程.
更新时间:2022-07-29 18:32:37
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