Odpowiedzi

2009-10-19T20:52:53+02:00
3. (x-4)×(x+4)+x≤x²-16
4. (x+1)³≥x³+3x²₊10
5. x³-6x²≥(x-2)³
6. -⅓x≥1

3. x+(x2-16)-(x2-16)<0
(x2-16)(x+1)<0
(x-4)(x+4)(x+1)<0
x=4 x=-4 x=1