Mathematics
Senior High
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大門4 1番 なぜ、-3y3乗が1番後ろなのですか?
(2) 降べきの順に整理すると
x°+ y°ー
x+(-y+3)x+(y°-y+10)
昇べきの順は
xy +3x-y+10
4 (1) ーxy+xy° - 2.x?y+2xy° -2y°
= x°+(-yー2y)x+(y+2y°)x-2y°
-3yx°+3y°x-2y°
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ありがとうございます!