himpunan penyelesaian ³log (x² - 1) - ³log (5x + 5) = 0 adalah

Materi : Logaritma
Kelas : X SMA

^3 log (x^2 - 1) - ^3 log(5x + 5) = 0
^3 log (x^2 - 1)/(5x + 5) = ^3 log 1
(x^2 - 1)/(5x + 5) = 1
x^2 - 1 = 5x + 5
x^2 - 5x - 5 - 1 = 0
x^2 - 5x - 6 = 0
(x - 6)(x + 1) = 0

x - 6 = 0
x = 6

x + 1 = 0
x = -1

Hp = {-1 , 6}