Rozwiąż równanie x(x-3) = 2(5x+11) więc: [latex]x^{2} - 3x = 10x + 22 x^{2} - 3x - 10x - 22 = 0 x^{2} - 13x - 22 = 0[/latex]   i co dalej ?

[latex] x^{2} - 3x = 10x +22[/latex] [latex] x^{2} - 3x -10x = 22[/latex] [latex] x^{2} - 13x = 22 / :x[/latex] [latex]x - 13 = frac{22}{x} [/latex] [latex]x = frac{22}{x} + 13[/latex] [latex]x = frac{35}{x}[/latex]