Question

expand each of the following(4a+2b)^3​

Answer 1

➲ Given :

(4a +2b)^3

➲ To Find :

➭ Expanded form

➲ Solution :

(4a +2b)^3

= (4a)^3 + (2b)^3 + 3 *4a *2b ( 4a + 2b)

= 64 a^3 + 8b^3 + 24 ab ( 4a +2b)

= 64 a^3 + 8 b^3 + 96 a^2 b + 48ab^2

➨Using formula :

➨ (a+b)^3 = a^3 +b^3 + 3ab ( a+b)

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

✧ Thanks for asking ✧