Solve for Absolute Value in the Expression |6^2|

The expression given is the absolute value of the square of 6, written as $\left|6^2\right|$. First, calculate the square of 6: $6^2 = 36$. Since the absolute value of a number is its non-negative value, the absolute value of 36 is simply 36. Thus, $\left|6^2\right| = 36$, which means the correct answer is $36$.