Question

sendo F(x)=2x-3 eG(x)=4-x^2 determine F(G(x))

Answer 1

$f(x)=2x-3 ~~e~~g(x)=4-x^2 ~~~~~~f(g(x)?$

$f(g(x)=~2(4-x^2)-3$
$f(g(x)=-2x^2+8-3=~\boxed { -2x^2+5 }$