Question

Tentukan himpunan penyelesaian persamaan logaritma berikut
Log(x^-4x-5) = log(x-5)

Answer 1

Log(x² - 4x - 5) = log(x - 5)
x² - 4x - 5 = x - 5
x² - 4x - 5 - x + 5 = 0
x² - 5x = 0
x(x - 5)
x = 0
x = 5

Hp : { 5 }