Posted by haifeng on 2023-04-01 20:16:04 last update 2023-04-20 22:10:35 | Answers (6) | 收藏
求下列一元三次方程的根.
(1) $x^3-x^2-x-2=0$;
(2) $x^3-3x^2+2x^1-2=0$;
(3) $x^3+1=0$;
(4) $x^3-15x-126=0$
(5) $x^3+x^2+x+1=0$
(6) $x^3-6x+2=0$
