Similar logic applies to . Zero x's multiplied together is obviously 0. [EDIT: Wow, I've handled x^0 enough times you'd think I wouldn't mess this up! x^0 = 1 as explained below. Let that be a lesson to me!]
Do note that 0^0 is a little tougher to settle. Why? An explanation can be found here:
sci.math FAQ: What is 0^0?