已知一元二次方程
的两根分别为
,则
的值是____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ccf1328602bd22b09ca55faa023a3d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/280860dd039e1305a5ccc455f63e8223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fd1f0ace9ca0b79929e73af6c201c2e.png)
更新时间:2023-04-06 15:21:15
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【知识点】 一元二次方程的根与系数的关系解读
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【推荐2】已知方程
的两根是
,
,则:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03c1f1e5435cf20a7439dc7840f65581.png)
________ ,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71086d09043b3640e23879e811410f2c.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdd079c2938a30ca95296be7767f2b9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/040135d64192de075ba0cc9f11ddbc9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaa33c2bd791339d32821077846605d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03c1f1e5435cf20a7439dc7840f65581.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71086d09043b3640e23879e811410f2c.png)
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