xy=2 then what is (2^(x+y)^2) / (2^(x-y)^2)	Choose one:
A) 2 B) 4 C) 8 D) 16 E) 256
(x+y)^2 - (x-y)^2   (x+y+x-y)(x+y-x+y)   (2x)(2y)   4xy   8   2^8 = 256   Answer 256
<result>E</result>
xy=2 then what is (2^(x+y)^2) / (2^(x-y)^2)