The coefficient of x in the expansion of $(x + 2)^{3}$ is :

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Solution

The correct option is D 12
$(x + 2)^{3} = x^{3} + 2^{3} + 3 x^{2} .2 + 3 x {.2}^{2}$
$= x^{3} + 6 x^{2} + 12 x + 8$
As $12$ is multiplied with x, hence, the coefficient of $x$ is $12$ .

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