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daicahuyvn

daicahuyvn

Member Since 29-05-2011
Offline Last Active 22-05-2022 - 19:03
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Giải $\sqrt{2x^{2}+10x+16}+\sqrt{x^{2}-1}=2x+4$

05-01-2012 - 18:21

$\sqrt{2x^{2}+16x+18}+\sqrt{x^{2}-1}=2x+4$