先化简,再求值:
,其中
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ada09059858cba38ec12167ecd5920e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/639c3d2ff5ee566fcc1b69c65712a661.png)
更新时间:2024-01-16 09:32:34
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【知识点】 整式的加减中的化简求值解读
相似题推荐
解答题-问答题
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适中
(0.65)
【推荐1】已知
,
.
(1)求
,并将结果整理成关于
的整式;
(2)若
的结果与
无关,求
、
的值;
(3)在(2)基础上,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc2a928005e8554b98cfb2fee537def8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04713975ee4959ec2ce0546493aeae4f.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e13c8573cf2fff14ab3c22a56536d8e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e13c8573cf2fff14ab3c22a56536d8e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
(3)在(2)基础上,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f634de380e98c8266e00b2a8a9491453.png)
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