tentukan nilai x yang memenuhi ³log(x+4)–³logx=2 Tolong dijawab

³log (x + 4) - ³log x = 2
³log (x + 4) - ³log x = ³log 3²
³log ( (x + 4) / x ) = ³log 9
(x + 4) / x = 9
kali silang
x + 4 = 9x
9x - x = 4
8x = 4
x = 4 : 8
x = ½