一般三次方程的代数解  

Algebraic Solutions of General Cubic Equations

作　　者：马纪英[1] 王宏 王潮[1] MA Ji-ying;WANG Hong;WANG Chao(Shijiazhuang Posts and Telecommunications Technical College,Shijiazhuang 050021,China)

机构地区：[1]石家庄邮电职业技术学院,河北石家庄050021

出　　处：《红河学院学报》2020年第2期136-137,共2页Journal of Honghe University

摘　　要：文章以二次方程代数解的表达式为切入点,结合单位根的知识,推导出三次方程代数解的表达式,并运用三次方程的判别式,对解的实际情况进行分析。Taking the expression of the algebraic solution of quadratic equation as the breakthrough point and combining the knowledge of unit root,this paper deduces the expression of the algebraic solution of cubic equation,and uses the discriminant of cubic equation to analyze the actual situation of the solution.

关 键 词：三次方程 代数解 单位根 判别式 

分 类 号：O21[理学—概率论与数理统计]