先化简,再求值:
,其中
,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c73cfb7e8ad6e084e8a74cd23d7715a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/639c3d2ff5ee566fcc1b69c65712a661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b27aee52676f4237adac068fe745fde.png)
更新时间:2022-12-21 20:18:54
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【知识点】 整式的加减中的化简求值解读
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解答题-计算题
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适中
(0.65)
【推荐2】合并同类项:
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26cd201582e00eb07b9902687706c9ea.png)
(2)先化简,再求值:
,其中
,
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26cd201582e00eb07b9902687706c9ea.png)
(2)先化简,再求值:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2e51b0a874c35753e26bd20254cd982.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e55aa0a20848c37c1892c567b2315e04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eefa44964db83759aff6fc8dd7ef8f28.png)
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