1、x(x²-5x+6)=0
x(x-2)(x-3)=0
∴x=0 x=2 x=3
2、两边乘以3x(x-1)得
3(x-1)²+3x²=10x(x-1)
3x²-6x+3+3x²=10x²-10x
4x²-4x-3=0
(2x+1)(2x-3)=0
x=-1/2 x=3/2
检验：x=-1/2,x=3/2是方程的解