Mathematics
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解き方が分からないので教えてくださると助かります🙇‍♀️

(2) (x²+1)(x+1)(x-1) C

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✨ Best Answer ✨

(x+1)(X-1)を先に計算

=(x²+1)(x²-1)
x²=Mとおく

=(M+1)(M-1)
=M²-1
=(x²)²-1
=x⁴-1

豚汁うどん

教えてくださってありがとうございます!!

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