\[y = - 2x^{2} - 4x - 2 \Longrightarrow ветви\ \]
\[вниз\]
\[x_{0} = \frac{4}{- 4} = - 1,\ \ \]
\[y_{0} = - 2 + 4 - 2 = 0\]
\[( - 1;0).\]