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求一元二次方程的整数根是各类竞赛的常见题.这类问题将整数理论和一元二次方程的有关知识有机地结合在一起,解题的技巧和方法较灵活.现举例说明这类问题的解法.一、利用整数的奇偶性
Finding the integer root of the one-member quadratic equation is a common problem in all kinds of competitions. This type of problem combines the integer theory and the related knowledge of the quadratic equation organically, and the techniques and methods for solving problems are more flexible. The solution to the problem. First, the use of integer parity