What is the coefficient of $x^{2}$ in the expression $2 a x^{2} + 3 a x + a,$ where " $a$ " is a constant?

a

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2

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2 a

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0

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Solution

The correct option is C $2 a$
$Coefficient: - ------------- -$
A coefficient is the numerical factor of a term containing constant and variables. For example, in the term $2 x,$ $2$ is the coefficient, depicted in the picture below.

As given $a$ is a constant, for expression $2 a x^{2} + 3 a x + a,$ coefficient of $x^{2}$ is $2 a .$

Therefore, option (c.) is the correct choice.

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