-10+
=____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2eb222ea09b077660f16d9e18a53b4c7.png)
更新时间:2019-12-05 16:52:30
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【推荐1】关于
的方程
,则下列说法中正确的是_________ .
①若
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②
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;
③若方程与
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④若方程的解为
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eaf629a98f5f2ff775608999b44dd8ec.png)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0b5e9b71b8e089881c3282c476fd0d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/639c3d2ff5ee566fcc1b69c65712a661.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf0086b054ef120408acac806a1b1318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c87b351f16728b0023fd63678f8103c7.png)
③若方程与
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52b85ff0ead35cc782fccde48ca1140b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6b8b454b17dbdf093bedfdd2d0ea8c7.png)
④若方程的解为
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d808cc412e49830cdacee7832c984774.png)
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【推荐2】已知实数
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【推荐2】
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