Jawabanmu

2014-08-17T10:48:09+07:00
2014-08-17T10:52:59+07:00
(2^n+2)²-2²×2^2n×2^n+2
                 2^n
= (2^2n+4) × 2^2n × 2^n+2 =>koefisien sudah sama !!
                   2^2n
= 2n+4 × 2n × 2n+2
              2n
= 2n+4 × 1 × 2n+2
= 2n+4 × 2n+2
= 4n + 8
4n = -8
n = -2 
kalo diatas ga ada jawabannnya.

pake cara ini :
(2n+4) (2n+2)
= 4n²+4n+8n+8
= 4n²+12n+8

coba periksa lagii !!