Question

若分式x平方-3x+2除以x平方-4x+3的值等于0,则x的值是

Answer 1

(x^2-3x+2)/(x^2-4x+3)=0

[(x-1)(x-2)]/(x-1)(x-3)=0 (x-2)/(x-3)=0 x=2

经检验 x=2 是原方程的根