Jawabanmu

2014-09-12T20:42:33+07:00
  (2^{2}) ^{x+3}  =   (2^{3}) ^{x+5}
 2^{2x+6}  =  2^{3x+15}
= 2x+6 = 3x+15
= 2x - 3x = 15 - 6
= -x = 9
= x = -9
1 5 1
2014-09-12T20:51:14+07:00
Hasilnya ,mesti -9 caranya panjang dibuku