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F(x)=3x-5 find f(f(x))
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3 votes
F(x)=3x-5 find f(f(x))

User Nastassiar
by
4.5k points

1 Answer

3 votes

Given that,


f(x)=3x-5

Therefore,


\begin{gathered} f(f(x))=f(3x-5) \\ =3(3x-5)-5 \\ =9x-15-5 \end{gathered}

So,


f(f(x))=9x-20

User Sergey Telminov
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3.9k points
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