Astronomy

polynomial equations

polynomial equations

Postby armen8804 » Wed Mar 16, 2011 8:26 pm
pl, help me to solve this system of polynomial equations

(1/(exp(200(z+x))-1))(198*exp(200(z+x))-2-(1/(z+x))(exp(200(z+x))-1))=50,
(1/(exp(200(z+x))-1))(197*exp(200(z+x))-3-(1/(z+x))(exp(200(z+x))-1))=53
armen8804
 
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Re: polynomial equations

Postby conpierce8 » Fri Apr 29, 2011 10:18 pm
Don't know if this is what you're looking for, but here goes:

If you subtract the second equation from the first equation, you get
Code: Select all
  ((1/(exp(200(z+x))-1))(198*exp(200(z+x))-2-(1/(z+x))(exp(200(z+x))-1)))
- ((1/(exp(200(z+x))-1))(197*exp(200(z+x))-3-(1/(z+x))(exp(200(z+x))-1)))
-------------------------------------------------------------------------
                                                                      =-3

W|A solved the equation for z in terms of x: (I hope this is what you're trying to find): Big Equation
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