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解无理方程基本指导思想是“化无理方程为有理方程”采用的方法一般为:移项、两边平方(或再移项再平方)达到去根号的目的,进而求解.有些无理方程(组)运用此法比较繁琐,甚而不得其解,现提几种特殊解法仅供讨论. 一、变形后利用换元法:
The basic guiding ideology for solving irrational equations is that the method used to “unify the irrational equation to be a rational equation” is generally to transfer the term, square the two sides (or re-shift term and then square) to reach the root number, and then solve. Some irrational equations (group) The use of this method is cumbersome, and even puzzling, several special solutions are proposed for discussion only. First, the use of substitution method after deformation: