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7 June, 09:09

If f (x) = 2x 2 square - x, find f (-3).

15

21

39

+2
Answers (1)
  1. 7 June, 10:52
    0
    F (x) = 2x^2-x

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

    f (-3) = 2 (9) + 3

    f (-3) = 18+3

    f (-3) = 21
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