\[\left\{ \begin{matrix} |y| = |x|\text{\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ } \\ y = x^{2} - 6x + 5 \\ \end{matrix} \right.\ \]
\[y = x² - 6x + 5\]
\[x_{0} = 3,\ \ \ y_{0} = - 4\]
\[Ответ:4\ решения.\]