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3 August, 23:54

If f (x) = 2x-5x^2 and g (x) = 5x+2 what is f (4) ?

A. - 2376

B. - 1584

C.-362

D.-52

E. None

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Answers (2)
  1. 4 August, 00:11
    0
    E. None

    Step-by-step explanation:

    f (x) = 2x - 5x²

    f (4) = 2*4 - 5*4² = 8 - 80 = - 72
  2. 4 August, 03:11
    0
    Plug 4 into f (x). The answer is - 72 so option E is the correct one.
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