多项式的因式分解,方法多种,技巧性强.有些多项式乔装打扮,貌似不能进行因式分解,但经过适当变形,创造条件便可以进行分解了.在因式分解中,常用的多项式变形技巧主要有以下五种.一、符号变换对多项式进行因式分解时,若某些项互为相反数,则可通过符号变换将这些项统一成一种形式 Polynomial factorization, a variety of methods, strong skills.Some polynomials disguise, seemingly can not be factorized, but after appropriate deformation, to create conditions can be decomposed in the factorization, the commonly used polynomial deformation techniques Mainly the following five: First, the symbolic transformation polynomial factorization, if some of the contrary to each other, you can symbolic transformation of these items into a unified form