Mathematics
Undergraduate
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どこがまちがってるかわかりません!教えてください!
正しい答えは四角で囲んでるやつです。🙇‍♂️

Answers

✨ Best Answer ✨

c(x+1)(x-1)=cx^2 -c
になるかと思います。

あや

ありがとうございます!

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