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26 October, 01:17

Find g of f for f=7x+5 and g (x) = 5x^2+4x-3

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  1. 26 October, 03:54
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    Basically (g of f) x = (f (g (x)) so

    g of f=f (g (x)) = 7 (5x^2+4x-3) + 5

    distribute

    f (g (x)) = 35x^2+28x-21+5=35x^2+28x-16

    g of f=35x^2+28x-16
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