解方程组:2/2a=1 (4ac-b²)/4a=-42/2a=1(4ac-b²)/4a=-4
问题描述:
解方程组:2/2a=1 (4ac-b²)/4a=-4
2/2a=1
(4ac-b²)/4a=-4
答
解方程组:2/2a=1 (4ac-b²)/4a=-4
2/2a=1
(4ac-b²)/4a=-4