# Thread: Find the derivative.

1. ## Find the derivative.

y= the square root of (4x+2).

Here's what i did so far, before getting stuck:
f'= (4x+2)^(1/2)
(1/2)(4x+2)^(-1/2)

Where do i go from here?

2. You were suppose to use the chain rule. dy/dx = du/du x du/dx

So let u = 4x + 2