因式分解是一种重要的恒等变形,习题又常令学生难办。课本上列举了4种基本方法,本文在此基础上经过变形,归纳出10种特殊解法。解因式分解问题同解其他问题一样,关键不在于记住了多少种方法,而在于对基本知识的深刻理解和灵活运用。在这方面,本文可作一范例。 Factorization is an important form of constant deformation, and exercises are often difficult for students to do. There are four basic methods listed in textbooks. Based on this, the text has been transformed to 10 special solutions. The solution factorization problem is the same as solving other problems. The key is not how many methods are remembered, but rather the profound understanding and flexible use of basic knowledge. In this regard, this article can give an example.