Solve the Equation $e ^ { 2 x } - 3 e ^ { x } - 10 = 0$

Solve the equation. Write the solution set with the exact values given in terms of natural or common
logarithms. Also give approximate solutions to 4 decimal places, if necessary.
- $e ^ { 2 x } - 3 e ^ { x } - 10 = 0$ ; use natural logarithms

A) $\{ \ln 5 \} ; x \approx 1.6094$
B) $\{ \ln 5 , - \ln 2 \} ; x \approx 1.6094$ or $- 0.6931$
C) $\{ \ln 5 , \ln ( - 2 ) \} ; x \approx 1.6094$ or $- 0.6931$
D) \{ \}