[中學] 100 鳳新高中教甄<代理>
3
x - 19x + a = 0 的三個根都是整數 , 求 a = ?
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07/28 23:49, , 1F
07/28 23:49, 1F
推
07/29 00:53, , 2F
07/29 00:53, 2F
→
07/29 00:54, , 3F
07/29 00:54, 3F
→
07/29 00:55, , 4F
07/29 00:55, 4F
推
07/29 08:02, , 5F
07/29 08:02, 5F
→
07/29 11:22, , 6F
07/29 11:22, 6F
→
07/29 11:24, , 7F
07/29 11:24, 7F
→
07/29 11:24, , 8F
07/29 11:24, 8F
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