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1 January, 09:33

Give the polynomial function below find f (-4) f (x) = 2x^2 - x + 9

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  1. 1 January, 13:29
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    f (-4) = 45

    Step-by-step explanation:

    Put x = - 4 to f (x) = 2x² - x + 9:

    f (-4) = 2 (-4) ² - (-4) + 9 = 2 (16) + 4 + 9 = 32 + 4 + 9 = 45
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