(1)计算:
;
(2)用配方法解方程![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9fa398cabeb2924e0483cf126a32b05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a19bccfe733b2afcb80898389297e8d.png)
(2)用配方法解方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9fa398cabeb2924e0483cf126a32b05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54e1d0f65817ba32a732040518f41440.png)
更新时间:2023-12-28 16:08:20
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适中
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【推荐1】(1)计算:(-
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(2)化简求值:
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解答题-问答题
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【推荐1】解方程:
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【推荐2】(1) 解方程:x2+4x-2=0;
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