If $x + 1$ is a factor of the polynomial $2 x^{2} + k x,$ then the value of $k$ is

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Solution

The correct option is C $2$
Since $x + 1$ is a factor of the above polynomial, $p (- 1) = 0.$
$∴ 2 \times (- 1)^{2} + k (- 1) = 0$
$∴ 2 - k = 0$
$∴ k = 2.$

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