Question

Write cubes in expand form
(3x+2)^3

Answer 1

By identity

$(x + y)^{3} = {x}^{3} + 3 {x}^{2}y + 3x {y}^{2} + {y}^{3}$

Answer 2

Answer:

$(3x + 2) ^{3} \\ 3x ^{3} + 2 ^{3} + 3(3x {}^{2} )(2) + 3(2 {)}^{2} (3x) \\ 27x {}^{3} + 54x ^{2} + 36x + 8(answer)$

By Applying these identity,

(a+b)³=a³+3(a)²(b)+3(a)(b)²+b³

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