125m в кубе+8n в кубе,алгебра

125m³ + 8n³ = 5³m³ + 2³n³ = (5m)³ + (2n)³ = (5m + 2n) × ((5m)² – 5m × 2n + (2n)²) = (5m + 2n) × (25m² – 10mn + 4n²).