Exponents and Radicals

I. Simplify each of the following expressions.

II Radicals

1.			7. Find the value of
2.			8. Simplify by removing all possible factors from the radical.
3.			9. Simplify by removing all possible factors from the radical.
4.			10. Simplify by removing all possible factors from the radical.
5.			11. Rationalize the denominator and simplify.
6.			12. Rationalize the denominator and simplify.