论文部分内容阅读
大家知道,方程组{x+y=-p xy=q可以通过一元二次方程z~2+pz+q=0求得其解,反过来,某些关于一元方程的问题也可借助于方程组来解答。
As we all know, the system of equations {x+y=-pxy=q can be solved by a quadratic equation z~2+pz+q=0. Conversely, some problems involving the equation of one yuan can also be solved by equations. Group to answer.