Decide What Values of the Variable Cannot Possibly Be Solutions $$1 - \frac { 7 } { x } - \frac { 18 } { x ^ { 2 } } = 0$$

Multiple Choice

Decide what values of the variable cannot possibly be solutions for the equation.
- $$1 - \frac { 7 } { x } - \frac { 18 } { x ^ { 2 } } = 0$$

A) $\{ 9,2 \}$
B) $\{ - 9,2 \}$
C) $\{ 9 , - 2 \}$
D) $\{ - 9 , - 2 \}$