Question

Dada as função f(x) =4×+3 e g(x) =x²+a sabendo que f(2)-g(1)=3, calcule o valor de a

Answer 1

f(x) = 4x + 3
f(2) = 4*2 + 3
f(2) = 11

g(1) = $1^{2}$ + a
g(1) = 1 + a

11 - (1+ a) = 3
11 - 1 - a = 3
10 - a = 3
-a = 3-10
-a = -7
a = 7