If $p (x) = 3 x - 7$ , then $p (x) + p (- x)$ is :

7

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6 x

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0

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- 14

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Solution

The correct option is D $- 14$
$p (x) = 3 x - 7$
$p (- x) = - 3 x - 7$
Adding above two
$p (x) + p (- x) = 3 x - 7 + - 3 x - 7 = - 14$

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