Question

expand the following(m-2n)³​

Answer 1

Answer:

m^3 - 8n^3 - 6mn(m-2n) [by using (a-b)^3 = a^3 - b^3 - 3ab(a-b) ]

Answer 2

Answer:

hope it helps

Step-by-step explanation:

(m-2n)³​

= m³ - (2n)³ - 3.m.2n ( m - 3n)

= m³ - 8n³ - 6mn ( m -3n)

= m³ - 8n³ - 6m²n + 18mn²