Question

( a-b )³=a³___+3ab²-b³​

Answer 1

Answer:

-3a^2b

Step-by-step explanation:

Hope it's helpful to you

Answer 2

Answer:

that simple formula

Step-by-step explanation:

$(a - b) ^{3} = {a}^{3} - 3 {a}^{2}b + 3a {b}^{2} - {b}^{2}$