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