Odpowiedzi

2010-03-14T11:18:06+01:00
3x²-(3x+2)(x-1)=8
3x kwadrat-3xkwadrat+3x+2x-2=8
5x=10/:5
x=2
2010-03-14T11:19:15+01:00
3x^ - (3x^ - 3x + 2x -2) = 8
3x^ - 3x^ + 3x - 2x + 2 = 8
x + 2 = 8
x = 6
2010-03-14T11:19:43+01:00
3x²-(3x+2)(x-1)=8
3x² - 3x² - 2x + 3x + 2 = 8
x = 8 - 2
x = 6