Question Details

$f (x) = \frac{x^{2} - 7 x + 12}{x^{2} - 18 x + 80}$ is negative if and only if

Options

A

- 2 < x < 3 or x > 9

B

x < - 5 or - 2 < x < 3

C

x < - 5 or 3 < x < 9

D

- 5 < x < - 2 or 3 < x < 9

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