Use the Quadratic Formula to Solve the Quadratic Equation $-$ 8 = 0
A)

Multiple Choice

Use the quadratic formula to solve the quadratic equation. 21 x 2 + 17 x $-$ 8 = 0

A) $\left\{ - \frac { 1 } { 3 } , \frac { 8 } { 7 } \right\}$
B) $\left\{ - \frac { 8 } { 7 } , \frac { 1 } { 3 } \right\}$
C) $\{ - 8,3 \}$
D) $\left\{ - \frac { 7 } { 8 } , \frac { 1 } { 3 } \right\}$
E) $\left\{ - \frac { 8 } { 7 } , 3 \right\}$