Question

What is the expand form =( 2a+b)³

Answer 1

Step-by-step explanation:

applying the algebraic identities

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

8a^3+b^3+12a^b+6ab^2

Answer 2

ASSALAMUALAIKUM

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IDENTITY :

• An identity is an equality which is true for all values of a variable in the equality.
• (a + b)³ = a³+ b³+ 3ab(a + b)
• In an identity the right hand side expression is called expanded form of the left hand side expression

Now ,

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

$= 8 {a}^{3} + {b}^{3} + 6ab(2a + b)$

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