Simplify the following completely. Please show all of your steps too.

Hint:
1. Think about the prime factorization of each number. You need two of the same number to bring it outside of the radical.

2. For the variables, think about breaking up odd number exponents into a variable with an even exponent and a variable with an exponent of 1. To bring the even exponent outside of the radical, divide the even exponent by 2 to get the new exponent of the variable.

3. Simplify.