Question

Решите неравенство: 27 в степени 1+2x >(9) в степени 2+x

Answer 1

$27^{1+2x}\ \textgreater \ 9^{2+x}\\ 3^{3+6x}\ \textgreater \ 9^{4+2x}\\ 3+6x\ \textgreater \ 4+2x\\ 4x\ \textgreater \ 1\\ x\ \textgreater \ \frac{1}{4}$