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1 .ordonati crescator numerele : 5√2 ;8;3√6;4√3
2 .calculati (√50-5√2)²⁰⁰⁷·║1-√3║+3√3-√27 ║modul
3 .rezolvati in R ecuatia : (2x+3)²-(x-5)²-4x(x-1)+x²+1=0