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20 May, 18:58

If f (x) = x4 + 3x3 - x2 + 6, find f (-3).

+3
Answers (2)
  1. 20 May, 19:15
    0
    F (-3) = (-3) 4 + 3 (-3) 3 - (-3) 2 + 6

    f = - 12 + (-27) - 21+6

    f = - 54

    That might not be right but I tried.
  2. 20 May, 19:17
    0
    F (-3) = (-3) ^4 + 3 (-3) ^3 - (-3) ^2 + 6

    f (-3) = 81 - 81 - 9 + 6

    f (-3) = - 3
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