3log ( x + 6 - 3 log (x - 2) = 2 pake cara himpunan penyelesaian

Bab Logaritma
Matematika SMA Kelas X

³log (x + 6) - ³log (x - 2) = 2
(x + 6)/(x - 2) = 3²
x + 6 = 9 (x - 2)
x + 6 = 9x - 18
x - 9x = -18 - 6
-8x = -24
x = 3

HP = { 3 }