This may seem elementary, but it's been awhile since I've done heavy algebra work.
I used the quadratic formula to get this equation:
\mu = (\pm \sqrt{1 - 8x^{2}} - 1)/2
and I'm trying to simplify to:
\mu = (\sqrt{1 + 8x^{2}} - 1)/2
If anyone could just point me to any resources that could...