Use the Quadratic Formula to Solve the Equation $8 x^{2}+7 x=-2$

Multiple Choice

Use the quadratic formula to solve the equation.
- $8 x^{2}+7 x=-2$

A) $\left\{\frac{7+\sqrt{15}}{16}, \frac{7-\sqrt{15}}{16}\right\}$

B) $\left\{\frac{-7+\sqrt{15}}{16}, \frac{-7-\sqrt{15}}{16}\right\}$

C) $\left\{\frac{-7+\mathrm{i} \sqrt{15}}{16}, \frac{-7-\mathrm{i} \sqrt{15}}{16}\right\}$

D) $\left\{\frac{7+\mathrm{i} \sqrt{15}}{16}, \frac{7-\mathrm{i} \sqrt{15}}{16}\right\}$