| 求含参数一元二次方程的整数根的方法 |
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| 引用本文： | 董瑾. 求含参数一元二次方程的整数根的方法[J]. 青海师专学报, 2007, 27(5): 48-50 |
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| 作者姓名： | 董瑾 |
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| 作者单位： | 陕西省西安中学,陕西西安710003 |
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| 摘 要： | 如何快速准确地求解含参数系数的且有整数根的一元二次方程,一直是广大师生关注的一个热点.本文从一元二次方程根的判别式,运用韦达定理,更换主元,运用二次函数的性质等方面进行了较深入的探究.
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| 关 键 词： | 参数 二次方程 整数根 方法 |
| 文章编号： | 1007-0117（2007）05-0048-03 |
| 修稿时间： | 2007-03-27 |
A Dollar Square Distance Integral Root With The Parameter Begs A Method Preliminary Study |
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| DONG Jin. A Dollar Square Distance Integral Root With The Parameter Begs A Method Preliminary Study[J]. Journal of Qinghai Junior Teachers' College, 2007, 27(5): 48-50 |
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| Authors: | DONG Jin |
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| Abstract: | In recent years,usually appear to contain parameter coefficient in mathematics contest at home and abroad of and have a dollar square distance of integral root.How solve quickly and accurately,have been one that the large teachers and the students pay attention to is a little bit hot.This text makes use of Weda's Theorem to reach axioms from the discretion type of a dollar squar e distance root,replacing a main dollar,property etc.of usage quadratic function carried on a more thorough investigation,having an apocalypse to order by period. |
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| Keywords: | parameter quadratic equation integral root method |
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