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senil.trang
2 năm trước
Một người làm vườn có hai khu vườn, khu vườn hình chữ nhật có chiều dài (x + 2) mét, chiều rộng (x-1) mét, khu vườn hình vuông có cạnh là (x + 1) mét. Viết biểu thức đại số tính tổng diện tích của hai khu vườn trên
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