Question

8) Dadas as funções f(x)=4x+2 e g(x)=1−x^2, determine valor numérico de f(g(−2)).

Answer 1

$f(x) = 4x + 2\\g(x) = 1 - x^2 \Longrightarrow g(-2) = 1 - (-2)^2 = 1 - 4 = -3\\\\f(g(-2)) = f(-3) = 4.(-3) + 2 = -12 + 2 = -10$

Resposta: -10