题目错了吧.如果是x^3-2x^2+1=0就好解多了.x^3-2x^2+1=0(x^3-x^2)-(x^2-1)=0x^2(x-1)-(x+1)(x-1)=0(x-1)(x^2-x-1)=0x-1=0或x^2-x-1=0x=1x^2-x-1=0用求根公式求x=(1±√5)/2所以x=1或x=(1±√5)/2...