log(x2-2x+7) = log(3x+1) itu yg paling depan log(x pangkat 2-2x+7) = log(3x+1)

[tex] log(x {}^{2} - 2x + 7) = log(3x + 1) \\ x {}^{2} - 2x + 7 = 3x + 1 \\ x {}^{2} - 2x + 7 - 3x - 1 = 0 \\ x {}^{2} - 5x + 6 = 0 \\ \\ selesaikan \: dg \: rumus \: abc \\ sehingga \\ x = \frac{5 + 1}{2} \\ x = 3 \\ dan \\ x = \frac{5 - 1}{2} \\ x = 2 \\ \\ maka[/tex]
HP : { 2 , 3 }

==Jawaban==

log(x² - 2x + 7) = log(3x + 1) ......... (coret log)
x² - 2x + 7 = 3x + 1
x² - 2x - 3x + 7 - 1 = 0
x² - 5x + 6 = 0
(x - 3)(x - 2) = 0
x = 3 V x = 2

Hp = {2,3}