Odpowiedzi

2010-04-10T14:34:53+02:00
(1-3x)²-3(3-3-1 ⅓x)<9(x-1)(x+1)
1 - 6x + 9x² -9 +9 + 4x < 9x² -9
-6x +9x² +4x -9x² < -9 -1 +9 -9
-2x < -10 /: (-2)
x > 5

liczby:
I. 6
II. -6
III. 6,5964