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23 April, 02:46

What would the value of f (-3) be if f (x) = 8x^2-4x^3-28? I forgot the exact process ...

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Answers (2)
  1. 23 April, 03:19
    0
    f (-3) = 152

    Step-by-step explanation:

    The "exact process" is ...

    put - 3 wherever x is found and do the arithmetic.

    __

    f (-3) = 8 (-3) ^2 - 4 (-3) ^3 - 28

    = 8 (9) - 4 (-27) - 28

    = 72 + 108 - 28

    f (-3) = 152
  2. 23 April, 06:28
    0
    The answer is 152 ... I think
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