phân tích đa thức thành nhân tử (nhóm 2 hạng tử)
x2+xy-5x-5y
I. Hoàn tất câu thứ hai sao cho nó có nghĩa tương tự với câu thứ nhất
1. What was wrong with you?
What was ........................................................................................?
2. Lan was absent from class yesterday because of her sickness.
Because Lan ............................................................................................
3. What is the weight of the parcel?
How ......................................................................................................?
4. What is your home address?
Where ..........................................................................................?
5. What was your weight last year?
How much .....................................................................................?
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