Write as a Single Logarithm log of 12+2 log of x

$\log (12) + 2 \log (x)$

Simplify $2 \log (x)$ by moving $2$ inside the logarithm.

$\log (12) + \log (x^{2})$

Use the product property of logarithms, $\log_{b} (x) + \log_{b} (y) = \log_{b} (x y)$ .

$\log (12 x^{2})$