[tex]-x(x - 3a + 1)\\\\-x^2 + 3ax - x\\\\\\3p(p - 2)\\\\3p^2 - 6p\\[/tex]-
Bedzię to
[tex] - x( x - 3a + 1) = - {x}^{2} + 3ax - x \\ 3p(p - 2) = 3 {p}^{2} - 6p[/tex]
