\[\boxed{\mathbf{814}\mathbf{.}}\]
\[1)\ f(x) = \frac{x^{5} + x^{3} + x}{x + 1}\]
\[= \frac{4x^{5} + 5x^{4} + 2x^{3} + 3x^{2} + 1}{(x + 1)^{2}}.\]
\[2)\ f(x) = \frac{\sqrt{x} + x^{2} + 1}{x - 1}\]
\[= \frac{2\sqrt{x} \bullet \left( x^{2} - 2x - 1 \right) - x - 1}{2\sqrt{x} \bullet (x - 1)^{2}}.\]