Jawabanmu

2014-05-11T22:59:34+07:00
    1       + ²logx = 2
²logx
1 + ²lo²x = 2²logx
²log²x - 2²logx + 1 = 0
(²logx - 1)² = 0
²logx = 1
x = 2^1 = 2