\[4x^{2} + 11x - 3 < 0\]
\[D = 121 + 48 = 169\]
\[x_{1} = \frac{- 11 + 13}{8} = \frac{1}{4} = 0,25;\ \ \ \]
\[x_{2} = \frac{- 11 - 13}{8} = - 3\]
\[4 \cdot (x + 3)(x - 0,25) < 0\]