Question

If f(x)=x^2+3x+5 what is f(3+h)?

Answer 1

 f(3+h)=(3+h)^2+3(3+h)+5 hope that help! :)

Answer 2

$f(x)=x^2+3x+5$
$f(3+h)=(3+h)^2+3(3+h)+5$
$f(3+h)=9+6h+h^2+9+3h+5$
$f(3+h)=h^2+9h+23$

:)