通过课堂学习我们知道,可以用提公因式法、公式法、十字相乘法等来分解因式.下面,我们来研究一下分解因式的其他手段,同时也来认识和了解一下解题时常用的一些数学方法.一、换元法换元法就是利用辅助未知数,把一个形式复杂的代数式化成较为简单的形式,从而便于解决问题的方法. We know through the classroom study, you can use the public factor method, formula method, cross multiplication method to factorization below, let’s look at other means of factorization factor, but also to understand and understand the problem-solving Commonly used mathematical methods First, the method for the metamorphosis Substitution method is the use of auxiliary unknowns, a form of complex algebraic into a relatively simple form, so easy to solve the problem.