Odpowiedzi

2009-11-14T11:35:49+01:00
2-3(x-7)+(5-3x)(x-2)
2-3x+21+5x-10-3x²+6x
13+8x-3x²

Chyba tak. :)
2009-11-14T11:36:43+01:00
2-3(x-7)+(5-3x)(x-2) =
2-3x+21+(5x-10-3x²+6x)=
2-3x+21+5x-10-3x²+6x=
13+8x-3x²

Na pewno tak :)