Giải các phương trình :
$\begin{array}{l}
1) 2\log \left( {x + \frac{1}{2}} \right) - \log \left( {x - 1} \right) = \log \left( {x + \frac{5}{2}}
\right) + \log 2\\
2) \log \left( {x + \frac{4}{3}} \right) - \log \left( {x - \frac{1}{3}} \right) = \frac{1}{2}\log \left( {x
+ 6} \right) - \frac{1}{2}\log x
\end{array}$
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