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tranphucduy1525
2 năm trước
Nêu khái niệm biểu thức đại số ? Lấy Vd về biểu thức đại số? Chỉ ra biến trong các biểu thức đó? Muốn tính giá trị của một biểu thức đại số tại các giá trị cho trước của biến ta làm thế nào? (Có mấy bước thực hiện)
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