Постройте график функции y=(x^2-25)/(x-5)-(2x^2+6x)/x.

\[y = \frac{x^{2} - 25}{x - 5} - \frac{2x^{2} + 6x}{x} =\]

\[= \frac{(x - 5)(x + 5)}{x - 5} - \frac{x(2x + 6)}{x} =\]

\[= x + 5 - (2x + 6) = x + 5 - 2x - 6 =\]

\[= - x - 1\]

\[y = - x - 1;\ \ \ x \neq 0;\ \ x \neq 5.\]