Вопрос:

Ответ:

\[y = x² - 6x + 5\]

\[x\] \[0\] \[1\] \[3\] \[5\] \[6\]
\[y\] \[5\] \[0\] \[- 4\] \[0\] \[5\]

\[x² - 6x + 5 > 0\ \]

\[x \in ( - \infty;1) \cup (5; + \infty).\]