Solve the Equation $$e ^ { 2 x } - 14 e ^ { x } + 9 = 0$$

Multiple Choice

Solve the equation.
- $$e ^ { 2 x } - 14 e ^ { x } + 9 = 0$$

A) { }
B) $\{ \ln ( 7 \pm 2 \sqrt { 10 } ) \} ; x \approx 2.5896 , x \approx - 0.3924$
C) $\{ \ln ( 7 + 2 \sqrt { 10 } ) \} ; x \approx 2.5896$
D) $\{ 7 \pm 2 \sqrt { 10 } \} ; x \approx 13.3246 , x \approx 0.6754$