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2 năm trước
Bài 1. Tìm x,y∈Nx,y∈N sao cho (x−1)(y−2)=2(x−1)(y−2)=2. Bài 2. Tìm tổng các ước của số 28 Bài 3. Số 73885625 có chia hết cho 25 hay không?
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Các câu hỏi liên quan

Lan is our …………… classmate. She comes …………… Nha Trang. She is …………… class 7A. She is thirteen …………… old. Her parents …………… in Nha Trang. Now, she’s living …………… her aunt and her uncle in HoChiMinh city. Her house is very …………… from school so she usually goes to school …………… bus. Sometimes, her aunt takes her to school by ……………. She doesn’t have …………… friends so she feels very sad. III/ §iÒn giíi tõ thÝch hîp vµo « trèng nÕu cÇn. 1, I often go to school …………… bus. 2, Their grandparents live …………… 34 Hang Da street. 3, Bob and I come …………… the same town but my accent is different …………… his. 4, At present, John is staying …………… his brother’s family …………… the city center, very far …………… his parents. 5, Thanh is a newcomer …………… class 6a. She sits …………… …………… my cousin. 6, We often go to the concert …………… weekends. 7, Are you free …………… this Sunday …………… 9 o’clock?8, I want to send …………… my friend this package. 9, Daisy gives two stamped envelopes …………… Mary. 10, The students are waiting …………… their teachers …………… over there. 11, The weather is usually hot …………… summer.

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