Tìm a,b ∈ N sao cho a² + 37 = ║b – 45 ║ + b – 45
Tìm a,b ∈ N sao cho a² + 37 = ║b – 45 ║ + b – 45
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Tìm a,b ∈ N sao cho a² + 37 = ║b – 45 ║ + b – 45