Factorize $x^{2} - 2 x - 8$

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Solution

$x^{2} - 2 x - 8$
We can Split the Middle Term of this expression to factorize it.
$\Rightarrow$ $x^{2} - 4 x + 2 x - 8$
$\Rightarrow$ $x (x - 4) + 2 (x - 4)$
$\Rightarrow$ $(x - 4) (x + 2)$
$∴$ $x = 4$ or $x = - 2$

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