Jawabanmu

Jawaban paling cerdas!
2014-09-12T08:53:13+07:00
2^2(x+2) = 2[4(x+5)/3] 
2x+4= (4x+20)/3
6x + 12 = 4x +20
2x = 8
x = 4

2^x = 2^4
2014-09-12T12:13:09+07:00
4^x+2=16^(x+5)/3
2^2x+4=2^(4x+20)/3
2x+4=(4x+20)/3
6x+12=4x+20
6x-4x=20-12
2x=8
x=4