If m is an integer such that (-2)^2m=2^(18-m) then m=?  Choose the correct answer.
A) 1 B) 2 C) 3 D) 5 E) 6
(-2)^(2m) = 4^m   and   2^(18-m) = 4^((18-m)/2)   Therefore,   m = (18-m)/2   2m = 18 - m   m = 6   Answer 6
<result>E</result>
If m is an integer such that (-2)^2m=2^(18-m) then m=?