Determine $(f\circ g)(x)$ if $f(x)=(x-1)/(x+1)$ and $g(x)=x^2$.

Lesson Parent: 
Problem: 

Determine $(f\circ g)(x)$ if $f(x)=(x-1)/(x+1)$ and $g(x)=x^2$.

Answer: 

$(f\circ g)(x)=(x^2-1)/(x^2+1)$