\[3x^{2} + 7x + 2 = 0\]
\[D = 49 - 24 = 25\]
\[x_{1} = \frac{- 7 + 5}{6} = - \frac{2}{6} = - \frac{1}{3};\]
\[x_{2} = \frac{- 7 - 5}{6} = - 2.\]
\[Ответ:x = - 2;\ \ x = - \frac{1}{3}.\]