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1. Scrieti ca interval multimea A={x apartine R | |2x+3| ≤ 5
2. Rezolvati inecuatia 4x - 5≤ 3x - 2 x apartine N
3. Rezolvati inecuatia x apartine R 2x(x-1) - 3(x+2) ≤ 2x(x-3) +5x +6