Answer
$= \log 4 + 5\log a + \log b - 3\log c$
Work Step by Step
$\log \frac{4a^{5}b}{c^{3}}$
$= \log 4a^{5}b- \log c^{3}$
$= \log 4 + \log a^{5} + \log b - \log c^{3}$
$= \log 4 + 5\log a + \log b - 3\log c$
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