Question

Sendo f(x) = 2x + 1 e g(x) = x + 1 . Com isso determine a função composta f(g(x))

Answer 1

$f(x)=2x+1\\g(x)=x+1\\\\f(g(x))=2(g(x))+1\\f(g(x))=2(x+1)+1\\f(g(x))=2x+2+1\\\boxed{f(g(x))=2x+3}$