SOLUTION: if f(x)=x-5 and g(x)=x^2+3, find f[g(-2)]

Algebra ->  Functions -> SOLUTION: if f(x)=x-5 and g(x)=x^2+3, find f[g(-2)]      Log On


   

Question 120016: if f(x)=x-5 and g(x)=x^2+3, find f[g(-2)]
Answer by HyperBrain(694) About Me  (Show Source):
You can put this solution on YOUR website!
First we need to find g(-2)
Solving,
g(-2)=%28-2%29%5E2%2B3=4%2B3=7
So, f(g(-2))=f(7)=7-5=2

Power up,
HyperBrain!