Respuesta :

Solution:

The question is given below as

[tex]\begin{gathered} f(x)=\frac{x+7}{2x+5} \\ find, \\ f(4x) \end{gathered}[/tex]

Concept:

Substitute x with 4x in the function above

[tex]\begin{gathered} f(x)=\frac{x+7}{2x+5} \\ f(4x)=\frac{4x+7}{2(4x)+5} \\ f(4x)=\frac{4x+7}{8x+5} \end{gathered}[/tex]

Hence,

The final answer is

[tex]\Rightarrow f(4x)=\frac{4x+7}{8x+5}[/tex]

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