\[(x - 4)^{2} + (x - 6)^{2} = 2\]
\[2x^{2} - 20x + 50 = 0\ \ \ \ \ \ \ \ \ \ |\ :2\]
\[x^{2} - 10x + 25 = 0\]
\[(x - 5)^{2} = 0\]
\[x - 5 = 0\]
\[x = 5\]
\[Ответ:x = 5.\]