Question

解方程急急急急急急急急急急

Answer 1

1/(x-1)+2/(x-2)=3/(x-3)
(x-2)(x-3)+2(x-1)(x-3)=3(x-1)(x-2)
4x=6
x=1.5
代入原方程验证，x=1.5是原方程的根

Answer 2

两边乘(x-1)(x-2)(x-3)
x²-5x+6+2x²-8x+6=3x²-9x+6
-13x+12=-9x+6
4x=6
x=3/2

Answer 3

直接去分母就可以了.两边同乘(x-1)(x-2)(x-3)即可.