Question

What is f(x + h) when f(x) = 3x^2 + 2x - 4 ?

Answer 1

replace each "x" in the original statement by "x+h"

Answer 2

f(x+h)=3(x+h)^2+2(x+h)-4, expanded it out as wanted

Answer 3

i did and got f(x + h) = 3x^2 + 3h^2 + 6xh + 2x + 2h - 4
this is just to make sure i am correct

Answer 4

looks good to me

Answer 5

thanks