Odpowiedź :
[tex]x - 2(\frac{x^{2}-x-2}{4})=3\\\\x -(\frac{x^{2}-x-2}{2}) = 3 \ \ /\cdot2\\\\2x-(x^{2}-x-2) = 6\\\\2x-x^{2}+x+2 = 6\\\\-x^{2}+3x +2-6 = 0\\\\-x^{2}+3x-4 = 0[/tex]
[tex]x - 2(\frac{x^{2}-x-2}{4})=3\\\\x -(\frac{x^{2}-x-2}{2}) = 3 \ \ /\cdot2\\\\2x-(x^{2}-x-2) = 6\\\\2x-x^{2}+x+2 = 6\\\\-x^{2}+3x +2-6 = 0\\\\-x^{2}+3x-4 = 0[/tex]