If $p = - 5$ , find the value of $p^{2} - 2 p - 100$ .

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Solution

$p^{2} - 2 p - 100$
Substituting value $p = - 5$ .
$\Rightarrow$ $(- 5)^{2} - 2 (- 5) - 100$
$\Rightarrow$ $25 - (- 10) - 100$
$\Rightarrow$ $25 + 10 - 100$
$\Rightarrow$ $35 - 100$
$\Rightarrow$ $- 65$

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If p = - 10, find the value of $p^{2} - 2 p - 100$

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