Mathematics
Senior High

教えて欲しいです!

Answers

(𝑥+𝑦)³(𝑥-𝑦)³={(𝑥+𝑦)(𝑥-𝑦)}³
=(𝑥²-𝑦²)³

ここで

(𝑎-𝑏)³=𝑎³-3𝑎²𝑏+3𝑎𝑏²-𝑏³

を使う

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