Posted by haifeng on 2023-08-30 08:14:03 last update 2023-08-31 08:36:07 | Answers (3) | 收藏
求一元二次方程
(1) $112y^2+16y-7.68=0$
(2) $112x^2+16x-7=0$
(3) $x^2-14x-232=0$