Answer:
Step-by-step explanation:
m³ -216 = m³ - 6³
a³ - b³ = (a-b) (a² + ab + b²)
a = m and b = 6
m³ - 6³ = (m - 6)(m² + 6m + 6²)
= (m - 6)(m² + 6m + 36)
