Question

What is the answer to this?

Answer 1

A. h^2+9h+23

Explanation:

F(x) = x^2 +3x + 5.

For f( 3+h), put x = 3+h.

F( 3+h)= (3+h) ^2 + 3 (3+h) +5 = 9 +h^2 + 6h + 9 + 3h + 5 = h^2 + 9h + 23.