Giải các bất phương trình :
$\begin{array}{l}
1)\,\left( {4{x^2} - 16x + 7} \right){\log _2}\left( {x - 3} \right) > 0\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,(1)\\
2)\,{\log _5}\left[ {\left( {{2^x} - 4} \right)\left( {{x^2} - 2x - 3} \right) + 1} \right] > 0\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,(2)
\end{array}$