If 2^2n + 2^2n + 2^2n + 2^2n = 4^22, then n =
Choose the correct choice from the following.
A) 3
B) 6
C) 12
D) 23
E) 21
2^2n + 2^2n + 2^2n + 2^2n = 4^22   =&gt; 4 x 2^2n = 4^22 = 2^44   =&gt; 2^2 x 2^2n = 2^44   =&gt; 2^(2n+2) = 2^44   =&gt; 2n+2 = 44=&gt; n =21   So. Answer will be 21.
<result>E</result>
If 2^2n + 2^2n + 2^2n + 2^2n = 4^22, then n =