Question

Dada aa funçoes f(×)=4×+3 e g(×)=x ao quadrado + a que f(2) - g(1)=3

Answer 1

f(x) = 4x + 3
g(x) = x² + a

f(2) - g(1) = 3
(4.2 + 3) - (1² + a) = 3
8 + 3 - 1 + a = 3
10 + a = 3
a = - 7