differentiate 2

i have this one worked out i just want to know what someone else got
and how they did it
 
Do you mean the following?

. . . . .\(\displaystyle \Large{\frac{xp}{x\mbox{ }+\mbox{ }p}\mbox{ }=\mbox{ }2}\)

If so, note that you can solve this for "p=", and then differentiate explicitly to check your work.

If you'd like your work and/or answer checked, please post either or both.

Thank you!

Eliz.
 
Then I must be misunderstanding what the original equation is, because my answer is way different. :shock:

Please reply using formatting as explained in the links in the "Forum Help" pull-down menu at the top of the page, showing your steps. Once we can see what the exercise is meant to be and how you've worked it, we will be better able to comment.

Thank you.

Eliz.
 
i took the denominator and multiplied it to both sides to cancel it out



so i got xp=2(x+p)

then i sort of got lost from there
 
Multiply the "2" through the parentheses, move the p-variable terms together, factor, and divide through to isolate. (This should have been covered back in algebra.)

Then differentiate, etc.

Eliz.
 
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