Find f(g(x)) f(x)=-2x g(x)=-2x

$f (x) = - 2 x$ $g (x) = - 2 x$

Step 1

Set up the composite result function.

$f (g (x))$

Step 2

Evaluate $f (- 2 x)$ by substituting in the value of $g$ into $f$ .

$f (- 2 x) = - 2 (- 2 x)$

Step 3

Multiply $- 2$ by $- 2$ .

$f (- 2 x) = 4 x$