(1)计算:
.
(2)解一元二次方程:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e8092a459bf0ac72fd6bc94d3722d9f.png)
(2)解一元二次方程:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9217a16f68bf97ba800b3aba87cf555.png)
更新时间:2020-02-21 21:24:31
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解答题-问答题
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适中
(0.65)
【推荐1】按要求解下列方程:
(1)[配方法]
;
(2)[因式分解法]
.
(1)[配方法]
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6288e698fce2327e86ca13955f9e9063.png)
(2)[因式分解法]
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9f1f850c6aa621e1b62c67e9423c4cb.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐2】解下列方程:
(1)
(2)
(用配方法)
(3)
(4)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c18ceef3a19ba896356a5bdff39b60b.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d1938e4ff40581b282f382c452d58b3.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2b203dd2a9718353ec4d286859b6a00.png)
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ee9d0800a0079331399260725e0907a.png)
您最近一年使用:0次