Rozwiąż rónanie:
2log x = log (5x - 4)
logx^2-log(5x-4)=0
log(x^2/(5x-4))=0
10^0=x^2/(5x-4)
x^2=5x-4
x^2-5x+4=0
delta = 25-4*1*4=9
x1=(5-3)/2=1
x2=(5+3)/2=4
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logx^2-log(5x-4)=0
log(x^2/(5x-4))=0
10^0=x^2/(5x-4)
x^2=5x-4
x^2-5x+4=0
delta = 25-4*1*4=9
x1=(5-3)/2=1
x2=(5+3)/2=4