Question

sendo a f(x)=4x+5 e a g(x)4x-4, determine a g(f(x)) e responda

Answer 1

$g(f(X)) = 4(4x+5)-4$
$g(f(X)) = 16x+20-4$
$g(f(X)) = 16x = - 16$
$g(f(X)) = x = - 1$