Mathematics
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(a4-8)(a4+8)の答えってどうしてa16-64ではないんでしょうか?

代数 展開 乗法公式

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✨ Best Answer ✨

(aの4乗)2乗は全部掛け算にすると、
(a×a×a×a)(a×a×a×a)=aの8乗
となります

sakupippi

有難うございます!

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