Question

(a+b)³ - a - b
please solve it fast anyone​

Answer 1

Answer:

a³ + 3a²b + 3ab² + b³ - a - b

Step-by-step explanation:

[(a+b)³ = a³ + 3a²b + 3ab² + b³]

so,

(a+b)³-a -b

a³ + 3a²b + 3ab² + b³ - a - b

Answer 2

Given: The equation is$(a+b)^3 - a - b$.

We have to solve the above equation.

As we know that the formula of $(a+b)^3$is$a^3 + b^3 + 3ab(a + b)$.

By using the above identity, we are solving the above equation.

We are solving in the following way:

We have,

$(a+b)^3 - a - b$

$=>a^3+b^3+3ab(a+b)-a-b\\=>a^3+b^3+3a^2b+3ab^2-a-b$

Hence, the solution of the above equation is$a^3+b^3+3a^2b+3ab^2-a-b$.