We are given two expressions:
Expression \(A\): \(72\times 7^x\)
Expression \(B\): \(441\times 2^y\)
Given that \(x\) and \(y\) are positive integers, find all ordered pairs \((x,y)\) so that the value of Expression \(A\) is equal to the value of Expression \(B\).
Themes: Algebra, Number Sense