If I told you a certain polynomial P(x) had a double root (only one!), how could you go about finding it, WITHOUT trying to find every root? Also, the EXACT value of the root is sought; not an approximation.
NB. Roots may be any kind --real or complex-- but they are all different, with multiplicity "1", except for one that has multiplicity "2".
You can't have exactly one complex root with multiplicity 2, its conjugate will also have multiplicity 2.
Posted by Jer
on 2006-05-09 13:14:57