Solve the Equation by Making an Appropriate Substitution $$( - 2 x - 1 ) ^ { 2 } + 11 ( - 2 x - 1 ) + 24 = 0$$

Multiple Choice

Solve the equation by making an appropriate substitution.
- $$( - 2 x - 1 ) ^ { 2 } + 11 ( - 2 x - 1 ) + 24 = 0$$

A) $\left\{ 1,3 \frac { 1 } { 2 } \right\}$
B) $\left\{ - 1 , - 3 \frac { 1 } { 2 } \right\}$
C) $\{ - 3 , - 8 \}$
D) $\left\{ 2,4 \frac { 1 } { 2 } \right\}$