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7 October, 07:50

Evaluate the quadratic function, f (x) = 3x2

- 4x - 9 at x = - 2

+2
Answers (1)
  1. 7 October, 11:40
    0
    11

    Step-by-step explanation:

    f (x) = 3x^2 - 4x - 9

    Let x = - 2

    f (-2) = 3 (-2) ^2 - 4 (-2) - 9

    =3 (4) + 8 - 9

    =12 + 8 - 9

    20-9

    11
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