Question

What is formula of (a+b)^3 and (a - b)^3

Answer 1

Answer:

Step-by-step explanation:

(a+b)^3 = a^3 + 3a^2b + 3ab^2 + b^3

(a-b)^3 = a^3 - 3a^2b + 3ab^2 - b^3

Answer 2

$\large{\underline{\boxed{ Answer}}}$

They are known as identity.

The formula form given identity can be be written as :-

$\boxed{\sf{ (a + b) ^{3} = {a}^{3} + {b}^{3} + 3ab(a + b)}}$

$\boxed{\sf{ (a - b) ^{3} = {a}^{2} - {b}^{3} - 3ab(a + b) }}$

you can use this identity for solving various problems.