Question

Se f (x)=3x+2, determine f (f (x+1))

Answer 1

Primeiro devemos calcular o f (x+1):


f(x+1) = 3(x+1) + 2
f(x+1) = 3x + 5


Agora calculando f(f(x+1)):


f(3x+5) = 3(3x+5) + 2
f(3x+5) = 9x + 17


Resposta → f( f(x+1)) = 9x + 17