cho đường thẳng (d1) có pt y=(3-2m)x+m-3 và (d2) y=-2x+3 a,với m=1 hãy vẽ đồ thị (d1) (d2) trên cùng 1 đồ thị tọa độ. b, gọi A là giao điểm của 2 đồ thị nói trên và C là giao điểm của đường thăng Ox và Oy. tính diện tích và chu vi tam giác ABC GIÚP MÌNH VỚI M KHÔNG HIỂU GÌ CẢ AI GIÚP MÌNH SẼ TẶNG 5 SAO NHA

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