Find All Values of X Satisfying the Given Conditions $y = \left( x - \frac { 15 } { x } \right) ^ { 2 } - 12 \left( x - \frac { 15 } { x } \right)$

Multiple Choice

Find all values of x satisfying the given conditions.
- $y = \left( x - \frac { 15 } { x } \right) ^ { 2 } - 12 \left( x - \frac { 15 } { x } \right)$ and $y = 28$

A) $- 5 , - 1,3,15$
B) $- 2,14$
C) $- 5,3$
D) No solution