Question

How do you find the derivative of (x+4)^2?

Answer 1

ok

Answer 2

Use chain rule. So lets say u=x+4 then the derivative of u^2 => 2u and the derivative is of u is 1 so you get 2*(x+4) *1

Answer 3

frank gonna tell u

Answer 4

It comes from \[dy/dx = dx/du * du/dy\]

Answer 5

http://en.wikipedia.org/wiki/Chain_rule
This is the wiki page concerning the chain rule

Answer 6

use (a+b)^2=a^2+b^2+2ab

Answer 7

Thank you Mayan I forgot about that way to do it.