What is the value of $p (x) = x^{2} - 3 x - 4 at x = 2 ?$

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Solution

$p (x) = x^{2} - 3 x - 4$
Therefore,
$p (2) = 2^{2} - 6 - 4$
$p (2) = 4 - 6 - 4 = - 6$

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