x³-6x²+11x-6=0x³-2x²-4x²+8x+3x-6=0x²(x-2)-4x(x-2)+3(x-2)=0(x-2)(x²-4x+3)=0(x-2)(x-1)(x-3)=0x-2=0,x-1=0,x-3=0x1=2,x2=1,x3=3