AMC 12B 2004 Problem 3

Past Contests AMC 12 AMC 12B - 2004
, , , ,
1

If x and y are positive integers for which 2^{x} 3^{y}=1296, what is the value of x+y ?

Answer Choices
A. 8
B. 9
C. 10
D. 11
E. 12