Bonjour,
[tex] {x}^{2} - \frac{5}{6} x + \frac{1}{6} [/tex]
[tex] = \frac{1}{6} ( 6{x}^{2} - 5x + 1)[/tex]
[tex] = \frac{1}{6} (6 {x}^{2} - 2x - 3x + 1)[/tex]
[tex] = \frac{1}{6} (2x(3x - 1) - (3x - 1))[/tex]
[tex] = \frac{1}{6} (3x - 1)(2x - 1)[/tex]
