Question

give the answer step by step
(3m+1) cube​

Answer 1

Answer:

27m³ + 1 + 27m² + 9m

Step-by-step explanation:

Identity: a³ + b³ + 3ab(a + b)

(3m + 1)³

Here, a = 3m and b = 1

= 3m³ + 1³ + 3 × 3m × 1(3m + 1)

= 27m³ + 1 + 9m(3m + 1)

= 27m³ + 1 + 27m² + 9m