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(4)、(5)の解答と解説お願いします🙇♀️
(4) 2x(x + y)² + xy(x + y) =
(5) 3xy(x-3y) + y (x - 3y)²
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ココちゃん、公文のプリントだよ…。
最近この意味わかんない因数分解になった😭💦