## College Algebra (10th Edition)

$\log_a{M} + \log_a{N}$
RECALL: For any positive numbers $A$ and $B$, and real number $a\gt 0, a\ne1$, $\log_a{AB}=\log_a{A} + \log_a{B}$ Thus, $\log_a{MN}=\log_a{M} + \log_a{N}$