Question

Sendo f (x ) = 2 x +4 e g (x ) = x + 4 calcule f (g(x))

Answer 1

Resposta:

$f(g(x))=2x+12$

Explicação passo-a-passo:

$f(x) = 2x+4\;e\;g(x)=x+4$

Substitua $g(x)$ dentro de $f(x)$.

$f(g(x))=2\cdot g(x)+4\\\\f(g(x))=2 \cdot(x+4)+4\\\\f(g(x))=2x+8+4\\\\f(g(x))=2x+12$