Hi, I have the following problem and have little idea how to go about doing it:
For which values of k does (k+1)x^2-4kx+3k=0 have:
(i) one solution?
(ii) two solutions?
(iii) three solutions?
I know I need to find the discriminant then sub in to find 1, 2 and no solutions (I think?). I know how to do simple versions of these, but this just confuses me.
Attached a photo of my attempt at the first step (finding the discriminant) before subbing in to find 1, 2 and no solutions.
Thank you for any help.