P
phanthetruong


[FONT=.VnTime]Nhan nao lam duoc bao minh voi[/FONT]
[FONT=.VnTime] [/FONT]
[FONT=.VnTime]Log3 (x2+x+1) – log3 x = 2x-x2[/FONT]
[FONT=.VnTime] [/FONT]
[FONT=.VnTime]Log3 (x2+x+1) – log3 x = 2x-x2[/FONT]
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