Odpowiedzi

2009-11-04T09:58:59+01:00
Ι2x+3Ι- Ι4x-3Ι≥0
2x+3-4x-3>0
-2x>0
x>2
2009-11-04T10:01:14+01:00
Ι2x+3Ι- Ι4x-3Ι≥0
2x+3-4x+3≥0
-2x≥-6/-2
x<_3
2009-11-04T11:57:13+01:00
12x+31-14x-31≥0
12x-14x≥31-31
-2x≥0