学习二项式定理后,学生经常会碰到一些三项式的习题,由于课本中没有介绍这类题型的求解方法,学生往往束手无策.鉴于这类问题又是高考的考查重点,本文拟介绍三项式展开的五种常用处理方法,供大家参考. After learning the binomial theorem, students often encounter some trinomial exercises. Since textbooks do not introduce the solution methods for such questions, students are often at a loss. Given that these problems are the focus of the college entrance examination, this article will introduce The trinomial expansion of the five commonly used methods for your reference.