If $f (x) = 2 x^{3} - 13 x^{2} + 17 x + 12$ , then find out the value of $f (- 2)$

- 90

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- 85

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- 70

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- 55

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Solution

The correct option is A $- 90$
$f (x) = 2 x^{3} - 13 x^{2} + 17 x + 12$
$f (- 2) = 2 (- 2)^{3} - 13 (- 2)^{2} + 17 (- 2) + 12$
$= - 16 - 52 - 34 + 12 = - 90$

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