Question

dadas as funções f(x) = x² -5 +6 e g(x) = x + 1, pede-se: a)calcular f(g(x)).

Answer 1

a) f(x+1)=(x+1)²-5+6
= x²+2x+1-5+6
=x²+2x+1+1

=x²+2x+2