Find the Real Solutions, If Any, of the Equation $3 x ^ { 2 } + x - 7 = 0$

Multiple Choice

Find the real solutions, if any, of the equation. Use the quadratic formula.
- $3 x ^ { 2 } + x - 7 = 0$

A) $\left\{ \frac { 1 - \sqrt { 85 } } { 6 } , \frac { 1 + \sqrt { 85 } } { 6 } \right\}$
B) no real solution
C) $\left\{ \frac { - 1 - \sqrt { 85 } } { 6 } , \frac { - 1 + \sqrt { 85 } } { 6 } \right\}$
D) $\left\{ \frac { - 1 - \sqrt { 85 } } { 2 } , \frac { - 1 + \sqrt { 85 } } { 2 } \right\}$