If $x > 8$ then the value if $x^{2} - 4 x - 32$ is:

zero

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positive

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negative

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not determined

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Solution

The correct option is B positive
$\Rightarrow (x - 8) (x + 4)$
Put any value $x > 8$
$(x - 8) (x + 4) > 0, P o s i t i v e$

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