2025-01-01

2025 = (20 + 25)²

2025 = (20 + 25)²

2025 = 45²

2025 = 1³+2³+3³+4³+5³+6³+7³+8³+9³

2025 = (1+2+3+4+5+6+7+8+9)²

2025 = 1+3+5+7+9+11+...+89

2025 = 9² x 5²

2025 = 40² + 20² + 5²