Solve by Using the Quadratic Formula $8 x^{2}+7 x=-2$ A) $\left\{\frac{-7+\mathrm{i} \sqrt{15}}{16}, \frac{-7-\mathrm{i} \sqrt{15}}{16}\right\}$

Multiple Choice

Solve by using the quadratic formula.
- $8 x^{2}+7 x=-2$

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