Question

11. Find (a + h) when f(x) = 3x^2 + 2x + 4.
Just need know if I am right.

Answer 1

what you got ??

Answer 2

so then i can check :)

Answer 3

\[3a^2h^2 + 2a + 2h + 4\]

Answer 4

oky thanks and good
you have to replace x^2 by (a+h)^2

Answer 5

Ok..

Answer 6

\[(a+h)^2 = (a + h)(a+h)\]
its ^^ mean you have two parenthesis that you have to multiply
use foil method

Answer 7

You get \[a^2+ah+ha+h^2\]

Answer 8

\(\huge\color{green}{{\rm PERFECT}!}\)

Answer 9

now combine like terms

Answer 10

ah + ah = ??

Answer 11

ah?

Answer 12

that is what you got
now combine ah + ah