\[2y^{2} - y - 6 = 0\]
\[D = 1 + 48 = 49\]
\[y_{1} = \frac{1 + 7}{4} = 2;\ \ \ \ \]
\[y_{2} = \frac{1 - 7}{4} = - \frac{6}{4} = - 1,5\]
\[Ответ:y = - 1,5;\ \ y = 2.\]