Hi all,

Firstly I am asked to differentiate y= x^4 - 3x^2 + 6

I get 4x^3 - 6x I am sure this correct, please advise if not (Nod)

I am lost with the gradient function of this one

y = 3/x^2 - 2x + 5

not sure what to do with the initial fraction

thinking it should be

????? - 2 ??

Cheers