Question

(a+b)^3
please tell me answer of this question ​

Answer 1

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

Answer 2

Answer:

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

Step-by-step explanation:

Taking LHS of the identity:

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

Multiply (a + b) and (a + b).

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

(a + b)

On Simplifying

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

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

Now we Combine the like terms.

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

or we can also write as:

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

Hope it helps you

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