Odpowiedzi

2009-12-06T17:29:44+01:00
2009-12-06T17:30:29+01:00
(x+1)*(x+2)*(x+3) =
= (x^2 + x + 2x + 2) * (x+3) =
= (x^2 + 3x + 2) * (x+3) =
= x^3 + 3x^2 + 3x^2 + 9x + 2x + 6 =
= x^3 + 6x^2 + 11x + 6