Question

y=xsqrt(2x+1) derivative

Answer 1

Ok so lets try this. Are you familiar with u subsitution?

Answer 2

I just figured out what i was doing wrong. All I had to do was stare at it for a while and then it suddenly clicked. But thanks for replying though. :)

Answer 3

use the product rule :
if y = uv then y' = vu' + uv'

and looks you need the chain's rule too

Answer 4

Oh thats good to hear! youre very welcome too!