2569
punti
Livello 2
$3^{2x}(3^x - 3) - 3 (3^x-3) \ge 0 $
$ (3^{2x}- 3) (3^x - 3) \ge 0 $
_______1/2_______1_______
------------------------0+++++ 3ˣ-3
-----------0++++++++++++ 3²ˣ-3
++++++0------------0+++++ LHS
$ x \le \frac{1}{2} \; \lor \; x \ge 1$
6933
punti
Livello 3