Question

Need help deriving this

Answer 1

Should I multiply out the bracket first?

Answer 2

I strongly recommend you doing this yes.

Answer 3

Yep, exactly. You're just using the chain rule here.

Answer 4

So I got \[2kSS _{0}-3ks\]

Answer 5

multiplied out you should get

\[\Large -kS^3+kS^2S_0 \] yes?

Answer 6

No I got \[2kSS _{0}-3ks ^{2}\]

Answer 7

if it is physics, which I don't know too much about, then I assume that \(k \) and \(S_0\) are constant, so after you derive that you get

\[\Large -3kS^2+2kS_0S \]

Answer 8

yes above I just multiplied it out, I was confused at first, because above you forgot the exponent.