Question

Let f(x)=x-3 and g(x)=x^2 find f(g(4)) ?

Answer 1

`f(g(4))=13`

Explanation:

.

`f(x)=x-3`

`g(x)=x^2`

To find `f(g(x))`, plug in `x^2` wherever you see `x` in `f(x)`:

`f(g(x))=x^2-3`

`f(g(4))=(4)^2-3=16-3=13`