# Math Help - (fg)(x), (f(g(x)), etc.

1. ## (fg)(x), (f(g(x)), etc.

All I'm having problems with is notation and whatnot.
whereas f(g(x)) means I plug in g(x) into f(x) and la dee da....
(fg)(x) means that I multiply f(x) and g(x), correct?

All I'm having problems with is notation and whatnot.
whereas f(g(x)) means I plug in g(x) into f(x) and la dee da....
(fg)(x) means that I multiply f(x) and g(x), correct?
Yes that is correct.

But remember that:

$f \circ g(x)= f(g(x))$ and not $(fg)(x)$