rozwiaz rowniania : c/ -6x^2+13x=5=0 d/5x^2-6x+6=0, e/ -2x^2+5x-3=0, f/ 4x^2+12x+9=0, g/ 1/2x^2+x+1=0, h/ x^2-x/2-1/2=0, i/ 1/4x^2-x/3+1/9=0 Dam naj.....
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