推 jacky7987 :似乎硬幹就可以有答案,配合洽有兩個整數的提示 04/27 00:26
→ debdeb :謝謝。其實我有答案，只是不了解怎麼推導XD 04/27 06:41
Find the range of values of the constant a for which there exist
exactly two integers satisfying the two quadratic inequalities in x
x^2 - 4x - 5 ≧ 0
x^2 - (3a-2)x -6a ＜ 0
simultaneously.
請問a的範圍該怎麼算？
謝謝！！
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