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222-9+11+12:2*14+14 = ? ( )

Toán Lớp 8: tìm x,y y thuộc Z biết: 3x^2+y^2+4xy-8x-2y=0

Toán Lớp 8: tìm x,y y thuộc Z biết: 3x^2+y^2+4xy-8x-2y=0

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222-9+11+12:2*14+14 = ? ( )