Сократите дробь: (x^2-9)/(3x^2+x^3).

\[\frac{x^{2} - 9}{3x^{2} + x^{3}} = \frac{(x - 3)(x + 3)}{x^{2}(3 + x)} =\]

\[= \frac{x - 3}{x^{2}}\]