Question

Differentiation problem

Answer 1

one term is k So S^2 where k and So are constants

Answer 2

the other term is - kS^3

Answer 3

can you differentiate?

Answer 4

@telliott99 differentiate what exactly?

Answer 5

2S and the contants are 1.

Answer 6

We have P = f(S) Find dP/dS

Answer 7

d/dx (cx^2) = 2cx
Look familiar?

Answer 8

@telliott99 2kS

Answer 9

What about So, isn't that a constant?

Answer 10

\[2kS(S _{0}-S)\]

Answer 11

For the first term I do get 2 k So S
For the second term I get -3 k S^2

Answer 12

If that looks right, now set equal to 0 and solve for S.

Answer 13

Yeah I got that.

Answer 14

I think i have to factorize

Answer 15

@telliott99 I think we are both wrong, I just recieved the solution

Answer 16

Solve the equation we just found.

Answer 17

2 k So S - 3 k S^2 = 0
2 So - 3 S = 0
S = (2/3) So

Answer 18

Thank you, I was getting confused with all the S terms and I forgot to cancel out the k's when dividing..