论文部分内容阅读
在各级各类的初中数学竞赛中,一元二次方程的整数根问题备受命题者的青睐,本文介绍几种求一元二次方程的整数根的方法以及与此有关的问题的解法.1整系数一元二次方程整数根的求法1.1利用判别式整系数一元二次方程有整数解时,判别式是完全平方数利用这条性质可以确定整参数的值,但需验证这些值是否使方程的根为整数.
In all kinds of junior middle school math competitions of all levels, the integer root problem of quadratic equation is very popular with the proponents. This paper introduces several methods to find the integer root of the quadratic equation and the solutions to the problems.1. The whole coefficient of a quadratic equation integer root of the method of 1.1 The use of discriminant integral coefficient The quadratic equation integer solution, the discriminant is completely square The use of this property can determine the value of the integer parameter, but need to verify whether these values make the equation The root is an integer.