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5 February, 21:28

Find f ' (a).

f (x) = 4x2 - 4x + 3

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  1. 5 February, 21:33
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    Use the power rule

    d (x^n) / dx = n·x^ (n-1)

    to form the derivative.

    f' (x) = 4·2x - 4

    f' (x) = 8x - 4

    Now, substitute "a" for "x" to find f' (a):

    f' (a) = 8a - 4
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