Posted by haifeng on 2023-04-01 17:23:44 last update 2023-04-01 20:25:02 | Answers (2) | 收藏
(1) $f(x)=x^5-5x^4+7x^3-2x^2+4x-8$;
(2) $f(x)=x^4+4x^2-4x-3$
