Find the coefficient of $x$
${{2 x}^{2} + x - 3}^{8}$

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Solution

We know that a coefficient is a number in front of a variable. For example, in the expression $a x^{2} + b x + c$ , the coefficient of $x^{2}$ is $a$ and the coefficient of $x$ is $b$ . The third term, $c$ is a constant.

Here, the given polynomial is $2 x^{2} + x - 3^{8}$ in which the coefficient of $x^{2}$ is $2$ and the coefficient of $x$ is $1$ . The third term, $3^{8}$ is a constant.

Hence, the coefficient of $x$ is $1$ .

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