解分式方程运用的是转化的思想,一般是将分式方程去分母,化为整式方程来解。整式方程的解若使分式方程的分母为0,则是增根,不是原方程的解。因此,解分式方程一定要检验。有些分式方程用一般的方法来解非常烦琐。若根据方程的特点,灵活选用一些非常规的方法,则常能达到事半功倍的效果。 Solution division equation is the use of conversion thinking, the general is to divide the equation to the denominator, into an integral equation to solve. If the solution of the integral equation is such that the denominator of the fractional equation is 0, then the root is added instead of the solution of the original equation. Therefore, solution equation must be tested. Some fractional equations to solve the general method is very cumbersome. According to the characteristics of the equation, flexible use of some unconventional methods, you can often achieve a multiplier effect.