计算:
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6dc99b3fe8c88d1c892cf22eb950c0bf.png)
(2)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6dc99b3fe8c88d1c892cf22eb950c0bf.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6905a6dff7a306a9d2bc5a6270134d08.png)
更新时间:2024-05-15 20:57:48
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解答题-计算题
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适中
(0.65)
【推荐1】(1)计算:
+
+|2﹣
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(2)解方程:4(x+2)2﹣81=0
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84050f54950b7bff081250d63fefe36d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bfa52f02d7839b0b15113e16b9e9c09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca5be7821872c2f83d39ffaea5216d09.png)
(2)解方程:4(x+2)2﹣81=0
您最近一年使用:0次
解答题-计算题
|
适中
(0.65)
【推荐1】请回答下列问题.
(1)计算
.
(2)解不等式组
,并把解集在数轴上表示出来.
(1)计算
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffd07223a5dff7dea38df9493df64665.png)
(2)解不等式组
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e19657da0d139245ef4659daf416d4c.png)
![](https://img.xkw.com/dksih/QBM/2021/3/3/2670010172809216/2672665389547520/STEM/5cfa7bcbfc774e8ea2d1820ae29c950e.png?resizew=243)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐1】已知实数x、y、z在数轴上的对应点如图所示:
,
,且x对应的点与z对应的点恰好关于y对应的点对称,求z的值.
(2)化简:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/baf2917e77945b30da7be9b48b0b317a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8d059affa3da30ff5b2e8f1c1ceb6ef.png)
(2)化简:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bba424920a01fa1e918ec420f336130.png)
您最近一年使用:0次