解分式方程时,有时会产生增根.一些同学对此只知其然而不知所以然,总认为验根这个步骤可有可无,遇到一些与增根相关的数学问题也不知如何解决.为此,本文从四个方面与同学们谈谈分式方程的增根问题. When solving the fractional equations, there are times when there is an increase in roots. Some students know this but they do not know why, and they always think that the rooting step is optional. Some mathematical problems related to rooting are encountered and I do not know how to solve it. Therefore, this article talks about the rooting problem of fractional equations with students in four aspects.