先化简,再求值:
,其中
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f78f7a97985ac67b5346780d0b04c51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dd82b5223c2a708c1729db2a3750990.png)
更新时间:2024-02-27 18:53:22
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相似题推荐
解答题-计算题
|
适中
(0.65)
【推荐1】按要求完成下列各题
(1)计算:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9288655082cb5f97d90da48358f85d0c.png)
(2)因式分解:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9b8bb0f3446ad29e2f53bfea2eefdc7.png)
(3)解方程:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8befd07db87738dd7aacaf744a66e000.png)
(4)先化简,再求值:
,其中
.
(1)计算:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9288655082cb5f97d90da48358f85d0c.png)
(2)因式分解:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9b8bb0f3446ad29e2f53bfea2eefdc7.png)
(3)解方程:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8befd07db87738dd7aacaf744a66e000.png)
(4)先化简,再求值:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ba9911f3b3a25a53fc12f2f52cdd9de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
您最近一年使用:0次
解答题-计算题
|
适中
(0.65)
名校
【推荐2】先化简(1-
)÷
,再从0,1,2中选择一个合适的x值代入求值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fb0d261bfe5bee169d0590beade91e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d8c6396ff8239ca92e9f0f6f332a3cb.png)
您最近一年使用:0次