Question

Consider the functions f(x) = 2x2 + 1 and g(x) = x + 2. What is the value of f[g(3)]?

Answer 1

\[g(3)=3+2=5\]
\[f(5)=2\times 5^2+1=51\]

Answer 2

Assuming you mean f(x) = 2x^2 + 1 and g(x) = x + 2

g(3) = 3 + 2 = 5

f(g(3)) = f(5) = 2*(5^2) + 1 = 51

Same as satellite73 got so I'm guessing I got it right :)