Follow along and learn a slick trick to help you solve problems involving an exponent raised to another exponent. You'll use the power of a power rule and simplification to solve the problem. This is a clear tutorial that does a good job...

This easy-to-follow video shows how to write the nth root of a number as a fractional exponent and how to simplify expressions with using fractional exponents.  There are worked examples, and practice problems included.