\[12x² - 13x + 3 \leq 0\]
\[D = 169 - 144 = 25\]
\[x_{1} = \frac{13 + 5}{24} = \frac{3}{4} = 0,75\]
\[x_{2} = \frac{13 - 5}{24} = \frac{1}{3}\]
\[Ответ:нет\ целых\ решений.\]