Question

$3^{x+2}< 9$

Answer 1

$3^{x+2}<9 \ 3^{x+2}<3^2 \ x+2<2 \ x<0$
Ответ: x∈(-∞; 0)

Answer 2

$3^{x+2}<9 \ 3^{x+2}<3^{2} \ x+2<2 \ x<0 \ x in (-infty;0)$