一道简单的英文3次多项式题,谢谢

一道简单的英文3次多项式题,谢谢
Consider the cubic polynomial P(x) = x^3 − x.
(a) Factorize the cubic polynomial into a product of linear factors.
(b) What are the roots of the polynomial.
(c) Determine whether the polynomial is even, odd or neither.

刚到国外学校布置了些作业这道题我不知道该怎么答,麻烦能帮回答下嘛?谢谢了