\[- 8x^{2} + 13x + 6 \geq 0\]
\[D = 169 + 192 = 361\]
\[x_{1} = \frac{- 13 + 19}{- 16} = - \frac{3}{8}\]
\[x_{2} = \frac{- 13 - 19}{- 16} = 2\]
\[Ответ:0;1;2.\]