先化简:
,然后从
,0,1,2这四个数中选一个合适的数代入求值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afe0390aa602d7c2bf8ff19ff6823fb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbc6a613224461ade69362d46550474.png)
更新时间:2023-08-01 20:24:11
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相似题推荐
解答题-计算题
|
较易
(0.85)
【推荐1】先化简
,再从
,
,
中选取适合的数字求这个代数式的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08d942fd8c48f42a2395822838d27797.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbc6a613224461ade69362d46550474.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c95b6be4554f03bf496092f1acdfbb89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
您最近一年使用:0次
解答题-计算题
|
较易
(0.85)
【推荐2】化简求值.
(1)
,其中x=3;
(2)
,其中x=6;
(3)
,选一个你喜欢的值代入;
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81fe9dc5d3aede1169aaef2262be48c7.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b5f5e653c889f5b49fda2dfffc440cb.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8929f84fb75b040e568b421160c11ad6.png)
您最近一年使用:0次