因式分解:x的三次方-2x+1

来源:学生作业帮助网 编辑:六六作业网 时间:2024/07/08 09:58:41
因式分解:x的三次方-2x+1因式分解:x的三次方-2x+1因式分解:x的三次方-2x+1=x^3-x-x+1=x(x^2-1)-(x-1)=x(x+1)(x-1)-(x-1)=(x-1)[x(x+1

因式分解:x的三次方-2x+1
因式分解:x的三次方-2x+1

因式分解:x的三次方-2x+1
=x^3-x-x+1
=x(x^2-1)-(x-1)
=x(x+1)(x-1)-(x-1)
=(x-1)[x(x+1)-1]
=(x-1)(x^2+x-1)

希望能帮你忙,不懂请追问,懂了请采纳,谢谢

(x-1)(x2+x-1)