Perform the Indicated Operation Involving Rational Expressions $\frac { 24 n - 36 - 4 n ^ { 2 } } { 50 n - 125 - 5 n ^ { 2 } } \cdot \frac { 350 n - 875 - 35 n ^ { 2 } } { 512 - 256 n + 32 n ^ { 2 } }$

Short Answer

Perform the indicated operation involving rational expressions. Express final answer in simplest form. $\frac { 24 n - 36 - 4 n ^ { 2 } } { 50 n - 125 - 5 n ^ { 2 } } \cdot \frac { 350 n - 875 - 35 n ^ { 2 } } { 512 - 256 n + 32 n ^ { 2 } }$