7log(x²-2x+3)=7log(4x-2)

Mapel : Matematika
Kelas : X SMA
Bab : Eksponen dan Logaritma

Pembahasan :
7'log (x² - 2x + 3) = 7'log(4x - 2)
x² - 2x + 3 = 4x - 2
x² - 6x + 5 = 0
(x - 5)(x - 1) = 0
x = 1
x = 5