Jawabanmu

2014-09-02T07:26:43+07:00
4^(2x-3) + 4^(2x-2) = 5/4^-3
4^2x + 4^(2x+1) = 5
1.4^2x + 4.4^2x = 5
5.4^2x = 5
4^2x = 1 = 4^0
2x = 0
x = 0