2log x + 2log(2x-1)=1

2log x + 2log(2x-1)= 1
2log x(2x-1) = 2log 2
———— ——————— 2log dicoret
2x² - x = 2
2x² - x - 2 = 0

x1,2 = 1 +/- √1-4(2)(-2) / 2(2)
= 1 +/- √17 /4

x1 = (1 +√17)/4
x2 = (1-√17)/4