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x≠0 i x≠1
sprowadzasz do wspólnego mianownika, równego ; x(x-1)=x²-x
[6(x-1) / ( x²-x) -2x / (x²-x)=1 /* x²-x
6x-6-2x=x²-x
x²-x-4x+6=0
x²-5x+6=0
Δ=b²-4ac=25-24=1
x1=[-b-√Δ]/2a=[5-1]/2=2 x2=[-b+√Δ]/2a=[5+1]/2=3