Am cateva probleme la matematica..
1. Radical din x+2 + radical din x-2
2.Radical mare 17-4radical9+4radical5=radical5-2 (sa se demonstreze egalitatile)
3.2radical3 + 6radical3
4.7rad12-5rad27+8rad48-6rad75+2rad108
5.3rad8+6rad98-5rad50-7rad72+4rad32