当
时,代数式
的值为
,则当
时,代数式
的值为 ________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/679353e656a54993c041ebd39ec7b31b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3af673d4a4d97bb2dfb1c4cc9b1c099b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f179a5e46197a7f5f5646fefd47c1989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15d2b01f86fb5a373af6b089cf3d891b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0430f474c3874cc420c54395c323039b.png)
更新时间:2023-12-03 23:43:26
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【知识点】 已知式子的值,求代数式的值解读