Recent content by Badballer

Oooh right so a = 1 b = 1 c = -x y=-1\pm \sqrt{(1+4x)}/2 I think Also sorry, I really fail with these itex tags.

I'm trying to work out the method of getting the inverse function of f(x) = x^2 + x I already know the inverse but I would like to know the method used to obtain it. So far I have: Made f(x) = y: y = x^2+2 And then made y = x and x = y: x=y^2+y And then I did this but I'm not sure if it's...