Jawabanmu

2014-06-23T10:18:02+07:00
#
Anggap: p = 2^2x maka
2^4x - 2^2(x + 1) + 3 < 0
<> 2^4x - 4 . 2^2x + 3 < 0
<> p² - 4p + 3 < 0<> (p - 1)(p - 3) < 0
<> 1 < p < 3
<> 1 < 2^2x < 3
<> 2^0 < 2^2x < 3
<> 0 < x < 4'log 3