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14/10/2024 09:11:12

Tính: 13. A=3x24xy+2y23x+2007 14. A=x2+xy23x3y+3


----- Nội dung ảnh -----
13. A=3x24xy+2y23x+2007

14. A=x2+xy23x3y+3

15. A=x2+xy+y23x3y+1989

16. A=x22xy+6y212x+2y+45
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