SOLUTION: If F(x)=x-5and G(x)=x2-2x then g(f(-1)=

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Question 152568: If F(x)=x-5and G(x)=x2-2x then g(f(-1)=
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
f%28x%29=x-5
g%28x%29=x%5E2-2x
First find f(-1).
f%28x%29=x-5
f%28-1%29=-1-5
f%28-1%29=-6
Then
g%28x%29=x%5E2-2x
g%28f%28-1%29%29=g%28-6%29=%28-6%29%5E2-2%28-6%29
g%28f%28-1%29%29=36%2B12
g%28f%28-1%29%29=48