\[35x² + 24x - 35 = 0\]
\[D = 576 + 4900 = 5476\]
\[x_{1,2} = \frac{- 24 \pm 74}{70}\]
\[x_{1} = \frac{5}{7};\ \ \ x_{2} = - \frac{7}{5} = - 1,4\]
\[Ответ:\frac{5}{7};\ - 1,4.\]