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21 March, 15:44

Given f (x) = 6x - 4 and g (x) = 2x3, find g (2) - f (4)

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  1. 21 March, 15:52
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    Easy, so just subsittute 2 for x and 4 for x in g (x) and f (x) respectively

    so assume that in g (x) that 2x3=2x^3 then

    g (2) - f (4)

    2 (2) ^3 - (6 (4) - 4)

    2 (8) - (24-4)

    16 - (20)

    -4

    the answer is - 4
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