5 log(x^2-2x+1) = 0 Pake cara

Question

Matematika Diposting : 2017-12-13 Diupdate : 2020-12-14 nabilaputrirahmadi

Pertanyaan

5 log(x^2-2x+1) = 0
Pake cara

Answer 1

jawab

ᵃlog b = n maka b = aⁿ

⁵log (x² - 2x + 1) = 0
x² - 2x + 1 = 5⁰
x² - 2x + 1= 1

(i)
x² - 2x + 1 - 1= 0
x² -2x = 0
x( x - 2 ) = 0
x = 0
x = 2

Answer 2

LogAritMa

5'log (x² - 2x + 1) = 0
x² - 2x + 1 = 1
x² - 2x = 0
x(x - 2) = 0
x = 0 atau x = 2

Nilai x yg memenuhi :
x = 0 dan x = 2