Question

if f (x) =4x+3. find f(f(2))

Answer 1

f(2)=4x2+3
f(2)=11
now
f(f(2))=4x11+3
f(f(2))=47

hope thus helps:p

Answer 2

f (x) =4x+3.
F(2) = 4(2) + 3
f(2) = 8 +3
f(2) = 11

f(f(2)) = f(11)
f(f(2)) =4x + 3
f(f(2)) = 4(11) + 3
f(f(2)) = 44 + 3
f(f(2)) =47