Perform the Indicated Operations $\frac{3 x^{3}-5 x^{2}-2 x}{30 x^{4}+10 x^{3}} \cdot \frac{4 x^{5}+32 x^{4}+48 x^{3}}{x^{4}-11 x^{2}+28}$

Essay

Perform the indicated operations.
(a) $\frac{3 x^{3}-5 x^{2}-2 x}{30 x^{4}+10 x^{3}} \cdot \frac{4 x^{5}+32 x^{4}+48 x^{3}}{x^{4}-11 x^{2}+28}$
(b) $\frac{x}{x^{2}-5 x+6}-\frac{2 x}{2 x^{2}-3 x-2}$
(c) $\frac{3 a-2 b}{2 x-y}-\frac{2 b-3 a}{y-2 x}$
(d) $\frac{t+\frac{3}{t}}{t-\frac{9}{t}}$