Solve the Quadratic Equation Using the Method That Seems Most $189 - 24 x - 5 x ^ { 2 } = 0$

Solve the quadratic equation using the method that seems most appropriate to you. $189 - 24 x - 5 x ^ { 2 } = 0$

A) $\left\{ 18 , - \frac { 42 } { 5 } \right\}$
B) $\left\{ - 9 , - \frac { 21 } { 5 } \right\}$
C) $\left\{ 9 , - \frac { 21 } { 5 } \right\}$
D) $\left\{ - 9 , \frac { 21 } { 5 } \right\}$
E) $\left\{ - 18 , \frac { 42 } { 5 } \right\}$

Correct Answer:

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