To rewrite the expression \( \ln \left( \frac{5x - 2}{x + 6} \right) \) as a sum or difference of logarithms, we can use the property of logarithms that states:
\[ \ln \left( \frac{a}{b} \right) = \ln(a) - \ln(b) \]
Applying this property to your expression gives:
\[ \ln \left( \frac{5x - 2}{x + 6} \right) = \ln(5x - 2) - \ln(x + 6) \]
Thus, the simplified expression is:
\[ \ln(5x - 2) - \ln(x + 6) \]