SOLUTION: please solve: f(g(x)) f(x)= 4x^3-3x g(x)= 6x-9
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Question 219563: please solve: f(g(x)) f(x)= 4x^3-3x g(x)= 6x-9
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
If \ =\ 4x^3\,-\,3x)
, then \ =\ 4(2)^3\,-\,3(2))
and \ =\ 4(a)^3\,-\,3(a))
. So:
\right)\ =\ 4\left(g(x)\right)^3\,-\,3\left(g(x)\right)\ = \ 4\left(6x-9\right)^3\,-\,3\left(6x-9\right))
Of course, this needs to be simplified. I'll leave that part to you.
John
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