Desolve gives wrong results

[Marcel]

Hi!
The first post from COB160 change FROM:

… to wolframalpha: sqrt(-x^2+c) and -sqrt(-x^2+c).

TO

… to wolframalpha: sqrt(-x^2+2c) and -sqrt(-x^2+2c).

If you look the first response from CyberAngel you will see the original post.

Question, Why doing this?
Is it to adjust WolframAlpha to the response of the Prime..
This is not a good way to make a champion.
Marcel