Question

What is `f(4a)` if `f(x)=(x^2+4)/(x+1)`?

Answer 1

`f(4a)=(16a^2 + 4)/(4a+1)`

Explanation:

Given;

`f(x) = (x^2 + 4)/(x + 1)`

`f(4a) = ((4a)^2 + 4)/(4a+ 1)`

`f(4a)=(16a^2 + 4)/(4a+1)`