" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
⁵log(x - 1) + ⁵log(2x + 1) = 1
=> ⁵log(x-1)(2x+1) = ⁵log5 (Ingat, ⁵log5 = 1, yang disini sdh saya ubah)
Karena basisnya sama, maka:
(x-1)(2x+1) = 5
=> 2x² - x - 1 = 5
=> 2x² - x - 6 = 0
=> (2x + 3)(x - 2) = 0
Maka x = dan x = 2.
Semoga membantu