Question

Решите уравнение. log_{√6} [/tex](x-4)=2

Answer 1

$log_{\sqrt6}(x-4)=2\; ,\; ODZ:\; \; x-4\ \textgreater \ 0,\; \; x\ \textgreater \ 4\\\\log_{6^{\frac{1}{2}}}(x-4)=2\\\\2\cdot log_6(x-4)=2\\\\log_6(x-4)^2=2\; \; \; \; [\, log_{a}x=b\; \; \to \; \; x=a^{b}\, ]\\\\(x-4)^2=6^2\\\\((x-4)-6)((x-4)+6)=0\\\\(x-10)(x+2)=0\\\\x_1=10\\\\x_2=-2\ \textless \ 4\notin ODZ\\\\Otvet:\; \; x=10.$