\[(x - 5)^{2} + (x - 3)^{2} = 2\]
\[x^{2} - 10x + 25 + x^{2} - 6x + 9 - 2 = 0\]
\[2x^{2} - 16x + 32 = 0\ \ \ \ \ \ \ \ |\ :2\]
\[x^{2} - 8x + 16 = 0\]
\[(x - 4)^{2} = 0\]
\[x - 4 = 0\]
\[x = 4\]
\[Ответ:x = 4.\]