x³-3x²+3-x=0x²(x-1)-2x²-x+3=0x²(x-1)-2x(x-1)-3x+3=0x²(x-1)-2x(x-1)-3(x-1)=0(x-1)(x²-2x-3)=0(x-1)(x+1)(x-3)=0x1=1,x2=-1,x3=3很高兴为您解答,祝你学习进步!有不明白的可...