Question

Nilai x yang memenuhi persamaan ³log (x-16)-³log x =2 adalah....

Answer 1

Verified answer

Log a -log b = log a/b
³log (x-16) - ³log x =2
³ log (x-16) / x = ³log 3²
(x-16) /x = 9
x - 16 = 9x
9x -x = -16
8x = -16
x = -2