Question

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

Answer 1

a^2+2ah+h^2+3a+3h+5

Explanation:

(a+h)^2+3(a+h)+5

(a+h)(a+h)+3a+3h+5

a^2+ah+ah+h^2+3a+3h+5

a^2+2ah+h^2+3a+3h+5