Precalc Math Help: Find (g o f)(-2)

[carebear184]

Hi, I need help with the following problem:
If f(x)=4-x and the g(x)=1+x^2 find the (g(small circle)f)(-2).
Thanks

 

[Noober]

It's basic algebra - substitute -2 for x in f(x), then substitute that for x in g(x).