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1 October, 19:01

F (x) = 2x^2 - 3x, calculate f (x+h) - f (x) / h

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  1. 1 October, 19:15
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    First plug in (x+h) for x in the function.

    f (x+h) = 2 (x-h) ^2-3 (x-h) = 2 (x^2-2xh+h^2) - 3x-3h =

    2x^2-4xh+2h^2-3x-3h - 2x^2 + 3x =

    (-4xh + 2h^2-3h) / h

    -4x + 2h-3
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