a) What is 4^3 ÷ 4^3 ? (Hint: Same as 2/2 or 6/6 or x/x) _________
b) Rewrite 4^3 ÷ 4^3 using the quotient property: _________________
c) Based on parts a and b above, what must 4^0 be? 4^0 = _________

Prove that xm · x0 = xm when m=0. Show your work below using your knowledge of properties of exponents and properties of integers.