Mathematics
Senior High
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(3)、(4)の途中式をお願いします🙏
因数分解です
2 (9ー3)(3ヶ二 2) 7y十1
次の各式を因数分解せよ.
(Q) 2にSS6 (2)串(QB)全2(GERO)eS
(⑨⑳」』21 122直人 2/e紹 (4) 2z2十5zy十2977十5z二リー3
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【数A】場合の数 3（順列）
183
3
【数A】場合の数 4（組合せ）
180
14
丁寧にありがとうございます☺︎