Round to the Nearest Thousandth $$e ^ { 8 x } e ^ { 6 x } = e ^ { 7 }$$

Multiple Choice

Round to the nearest thousandth.
- $$e ^ { 8 x } e ^ { 6 x } = e ^ { 7 }$$

A) $\{ 2.490 \}$
B) $\{ 0.500 \}$
C) $\{ - 1.490 \}$
D) $\{ 0.642 \}$