1028.
\[\frac{{x - 49}}{{50}} + \frac{{x - 50}}{{49}} = \frac{{49}}{{x - 50}} + \frac{{50}}{{x - 49}}\]
1602.
\[\begin{array}{l}
{\text{Решите уравнение:}} \hfill \\
{x^3} - 3{x^2} - 3x = 1 \hfill \\
\end{array}\]
1604.
\[\begin{array}{l}
{\text{Решите уравнение:}} \hfill \\
{x^3} - \left( {2 + \sqrt 3 } \right){x^2} + x + 3 + \sqrt 3 = 0. \hfill \\
\end{array}\]