The expression is:

When you raise an exponent to another exponent, such as this case, you need to follow this rule:

The rule is to multiply the two exponents.
Using that rule with the expression we have:

Since 2*3=6:

The simplified expression is:

If what you need is the numerical value of the expression, the next step will be to multiply 3 by itself the number of times the exponent indicates, in this case, multiply 3 six times by itself:

Solving the multiplications:

Answer:
