V = a³
a = 5x + 2
V = (5x + 2)³ = (5x)³ + 3* (5x)² * 2 + 3 * 5x * 2² + 2³ = 125x³ + 150x² + 60x + 8
V = 125x³ + 150x² + 60x + 8
V = a³
a = 5x + 2
V = (5x + 2)³ = (5x)³ + 3* (5x)² * 2 + 3 * 5x * 2² + 2³ = 125x³ + 150x² + 60x + 8
V = 125x³ + 150x² + 60x + 8