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17 June, 15:17

Given f (x) = 2x^2-4x-5, find f (3)

+1
Answers (2)
  1. 17 June, 15:40
    0
    substitute 3 in for x

    f (x) = 2 (3) ^2-4 (3) - 5

    =18-12-5

    =1
  2. 17 June, 15:44
    0
    substitute 3 in for x

    f (x) = 2 (3) ^2-4 (3) - 5

    =18-12-5

    =1
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