用置换求解二次和三次方程

To Solve Quadratic Equation and Cubic Equation with permutation Method

对于一般的三次方程 ,它的根的求解都具有相当难度 。

To solve quadratic equation and cubic equation with permutation method in group theorg is partieularly helpful for the middle school teaehers of mathematics and it would enhance. the teaching effct in accordance.