anarobleroo anarobleroo

16-03-2018
Mathematics

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F(x)=4x+7,g(x)=3x^2

find(fg) (x)

Respuesta :

harpazo harpazo

16-03-2018

We want f(g(x)).

This means to plug the value of g(x) into every x you see in f(x) and simplify.

f(3x^2) = 4(3x^2) + 7

f(3x^2) = 12x^2 + 7

So, f(g(x)) = 12x^2 + 7.

Did you follow?

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