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17 February, 21:27

F (x) = x2 + 5x - 9

Find f (3)

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  1. 17 February, 21:44
    0
    Answer: 15

    Step-by-step explanation:

    f (x) = x² + 5x - 9

    f (3) = (3) ² + 5 (3) - 9

    = 9 + 15 - 9

    = 15
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