## College Algebra 7th Edition

$3\ln{a}$
RECALL: $\ln{PQ} = \ln{P} + \ln{Q}$ Write $a^3$ as $a^2(a)$ to obtain: $=\ln{(a^2\cdot a)}$ Use the rule above to obtain: $=\ln{(a^2)} + \ln{a}$ Write $a^2$ as $a(a)$ to obtain: $=\ln{(a \cdot a)} + \ln{a}$ Use the rule above to obtain: $=\ln{a} + \ln{a} + \ln{a}$