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Giải bất phương trình : $\frac{{{4^x} + 2x - 4}}{{x - 1}} \le 2\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,(1)$
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Giải các bất phương trình :
$\begin{array}{l}
1)\,\,\sqrt {2.\left( {{5^x} + 24} \right)} - \sqrt {\left( {{5^x} - 7} \right)} \ge \sqrt {\left( {{5^x} + 7} \right)} \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,(1)\\
2)\,\,\sqrt {{{13}^x} - 5} \le \sqrt {2\left( {{{13}^x} + 12} \right)} - \sqrt {{{13}^x} + 5} \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,(2)
\end{array}$
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Giải bất phương trình :
$\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{6^{\log _6^2x}} + {x^{{{\log }_6}x}} \le 12\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,(1)$
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