Вопрос:

Ответ:

\[x² - 14x + 33 = 0\ \]

\[D = 196 - 132 = 64\]

\[x_{1,2} = \frac{14 \pm 8}{2}\]

\[x_{1} = \frac{22}{2} = 11;\ \ \ \ x_{2} = \frac{6}{2} = 3.\]