Упрости выражения

\(\dfrac{x-64}{\sqrt {x}+3} \cdot \dfrac{1}{x+8 \sqrt {x}}-\dfrac {\sqrt {x}+8}{x-3 \sqrt {x}} =\) [ \(-\frac{22}{x-9}\) | \(-\frac{1}{x-9}\) | \(\frac{22}{x+9}\) | \(\frac{2}{x+9}\) ]