Graphing polynomial functions

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Given f(x)= 4x^2=9x+2 and g(x)=3x-2, find and simplify the following:

(f+g)(x)
(fg)(x)
(f-g)(3)

I have a few other problems i need help with too so if you want to lend me a hand let me know.

  • Graphing polynomial functions -

    We will be happy to critique your thinking.

  • Graphing polynomial functions -

    the standard definition of
    (f+g)(x) = f(x) + g(x)

    so for your functions
    (f+g)(x) = (4x^2+9x+2) + (3x-2)

    simplify this and then

    follow the same technique for the other two questions, and let me know what you got

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