The expression in the image can be interpreted as follows:

$2 \log 8 + 6 \log 3 - \log 12 - \log 5$

Let's simplify this expression step by step using logarithmic properties. We'll use the following logarithmic rules:

1. $\log_a(x^n) = n \log_a x$
2. $\log_a x + \log_a y = \log_a (x \cdot y)$
3. $\log_a x - \log_a y = \log_a \left(\frac{x}{y}\right)$

Step 1: Apply the first property to the terms with coefficients

$2 \log 8 = \log (8^2) = \log 64$ [ 6 \log 3 = \log (3^6) = \log 729