Differentiating (1 Viewer)

[JDarcy]

Ok so quick question with Differentiating.

Firstly.. is the image right?
and secondly.. can it be taken further?

like (x+2)-(x-2) = 4
then expand out bottom.. etc?

i just need someone to confirm cause i think i was away or wasnt paying attention when we learnt in class >.>

this is the link cause the pic isnt working on my screen >.>
http://tinypic.com/view.php?pic=opzpz9&s=6
thanks

 

[tommykins]

correct

 

[JDarcy]

as in.. i dont have to go any further? or i have to expand and simplify?

 

[xV1P3R]

It would be advisable to expand and simplify the top bit of the fraction as it looks much nicer as 4 as opposed to (x + 2) - (x - 2). The bottom however needn't be expanded.

 

[JDarcy]

okay, so no expanding bottom.. ok tyvm