Question

Did I get the right answer?

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

A. a^2+2ah+h^2+3a+3h+5
B. (a+h)^2+3(a+h)+5(a+h)
C. (x^2+3ax+5) (a+h)
D. h^2+3a+3h+5

Is it C? I'm not exactly sure what the question is asking me.

Answer 1

subtitute x with a+h

Answer 2

@febylailani So the answer will be B then?

Answer 3

no, why B? there's no x after 5 so you mustn't put a+h after 5. do you think so?

Answer 4

f(x)=x^2+3x+5
f(a+h)=(a+h)^2 +3(a+h)+5 :)