Mathematics
Senior High
Resolved
解説お願い致します🙇🏻♀️
2つの2次方程式 x2+x+k=0, x²-2x-3k-20 が次の条件を満
たすような定数kの値の範囲を求めよ。
(1) ともに実数解をもつ
(2) 一方のみが実数解をもつ
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