Mathematics
Senior High
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ここの解き方教えて欲しいです。
□ 24 次の式を計算せよ。
(-5)
発展3次式の展開
(a+b+c)2(b+c-a)+(c+a-b)-(a+b-c)2
1 3次式の展開の公式
(エーコ)
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なるほど!すごく分かりやすいですありがとうございます😭