2log(×2-2×-23)=3log(×2-2×-23)

Bab Logaritma
Matematika SMA Kelas X

²log (x² - 2x - 23) = ³log (x² - 2x - 23)

x² - 2x - 23 = 1
x² - 2x - 23 - 1 = 0
x² - 2x - 24 = 0
(x - 6) (x + 4) = 0
x - 6 = 0
x = 6

x + 4 = 0
x = -4

HP = { -4, 6 }