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8 June, 16:01

Find the value of f (-9) and g (4) if f (x) = - 4x + 8 and g (x) = 6x + 25x^-2

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  1. 8 June, 17:54
    0
    The value of f (-9) = 44

    The value of g (4) = 25.5625
  2. 8 June, 19:35
    0
    F (x) = - 4x + 8

    f (9) = - 4*9 + 8 = - 36 + 8 = 8 - 36 = - 28

    f (9) = - 28

    g (x) = 6x + 25x⁻² = 6x + 25/x²

    g (4) = 6*4 + 25/4² = 24 + 25/16 = (24*16 + 25) / 16 = 409/16

    g (4) = 409/16 = 25.5625
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