Write out the form of the partial fraction decomposition of the function appearing in the integral:
$$\int \frac{-3 x - 138 }{x^2 + 8 x - 20}\, dx$$

Determine the numerical values of the coefficients, $A$ and $B$, where $A \leq B$ and

$$\frac{-3 x - 138 }{x^2 + 8 x - 20}\ = \frac{A}{denominator} + \frac{B}{denominator}$$

$A =$ $B =$