(X+1分之X)方-X+1分之5X+6=0 换元法

问题描述:

(X+1分之X)方-X+1分之5X+6=0 换元法

两边都*(x 1)方得x^2-(x 1)(5x 6)=0化简得4x^2 11x 6=0,(x 2)(4x 3)=0