Question

1.
Sendo f(x) = 2x – 3 e g(x) = 4 – x²,    determine: a) f(g(x))                           

Answer 1

f(x) = 2x - 3 e g(x) = 4 – x²,) 


então :
f(g(x)) = 2x4-x²-3
f(g(x)) = 8 - x² -3 
f(g(x))  5 - x ²