Let F(x) = $\frac { x ^ { 2 } - x } { x }$

Short Answer

Let f(x) = $\frac { x ^ { 2 } - x } { x }$ , g(x) = $\frac { 1 } { \sqrt { x } }$ . Compute f(g(x)) at x= 4.
Enter just a reduced fraction.