Mathematics
Senior High

[3]はなぜD>0を使うだけではダメなんでしょうか?
なぜ軸などについても調べるんですか?

[3] 2次方程式x-mx-m+8= 0 が異なる2つの正解をもつように、 定数mの値 [6] の範囲を定めよ。 13 fox D>o. (2) [3] [1] Em )³² - 4.1 (mts) > c. 2 +4m.- 32 >0. > c. 3 (2] $>c. 軸 _M+8 >0 8 m< &in MK-8, 4<m

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