Упростите выражение: (x^2+125)/(x^2-12x+36)*(x^2-36)/(x^2-5x+25)-(11x+66)/(x-6).

\[= \frac{(x + 5)(x + 6)}{x - 6} - \frac{11x + 66}{x - 6} =\]

\[= \frac{x^{2} + 5x + 6x + 30 - 11x - 66}{x - 6} =\]

\[= \frac{x^{2} - 36}{x - 6} = \frac{(x - 6)(x + 6)}{x - 6} =\]

\[= x + 6.\]