solve the equations simuntaneousely [1] X +square root of y=11 [2] square root of x+y=7
Just for completeness here:
and
From the bottom equation:
Inserting this into the top equation:
<-- Square both sides
Since the solution is going to turn out to be ugly anyway, I'm going to use a trick. (They use it in the referred thread as well.)
Using the rational root theorem, you can find one nice solution: x = 9. You can get the rest numerically: x = 7.86869, 12.8481, 14.2832.
Thus
So
-Dan