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dangtrongnghia1235
2 năm trước
Khai triển các hàng đẳng thức sau: a.(x+1)^3 b.(2x+3)^3 c.(x+1/2)^3 d.(x^2-2)^3 e.(2x-3y)^3 f.(1/2x-y^2)^3
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