A
anhtruong10a9


ai giai cho minh cau he nay vs : [TEX] x^2y^2-2x+y^2=0 [/TEX]
[TEX] 2x^3+3x^2+6y-12x+13=0[/TEX]
minh lam mai ma ko ra.................chan qua...........
[TEX] 2x^3+3x^2+6y-12x+13=0[/TEX]
minh lam mai ma ko ra.................chan qua...........
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