Question

Sendo f(x) = 5x+1 e h(x) = 1+4x, calcule f[h(2)] + h[f(2)].

Answer 1

f(x) = 5x + 1

h(x) = 1 + 4x

f(2) = 5.2 + 1
f(2) = 10 + 1
f(2) = 11

h(2) = 1 + 4.2
h(2) = 1 + 8
h(2) = 9

f[h(2)] + h[f(2)] =
f(9) + h(11) =
5.9 + 1 + 1 + 4.11 =
45 + 1 + 1 + 44 =
           91