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29 May, 20:54

Evaluate (f o f) (x) when f (x) = 4x-3 and g (x) = 5 - x^2

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  1. 29 May, 20:55
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    f (x) = 4x-3

    Step 1: Replace all 'x' values with f (x) in the equation.

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

    Step 2: Multiply the brackets and simplify.

    16x-12-3

    =16x-15

    Step 3: Rewrite in the form of f (f (x)).

    f (f (x)) = 16x-15
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