Question

Dadas as funções reais f(x)= x^2 - 16 e g(x) = -2x^2+4x +1. calcule 
A f(2)       b. g(1)            C. f(1) + g (2)

Answer 1

$f(x)=x^2-16\\g(x)=-2x^2+4x+1\\f(2)=4-16=-12\\g(1)=-2+4+1=3\\f(1)=1-16=-15\\g(2)=-8+8+1=1\\f(1)+g(2)=-15+1=-14$