1 votes 1 votes Let $a$ be the root of the polynomial $f(x)$ of multiplicity 1. Then $a$ is a root of polynomial $((x-a) / 2) (f’(x) + f’(a)) – f(x) +f(a)$ of multiplicity exactly 4 at least 4 at most 2 exactly 1 Quantitative Aptitude quantitative-aptitude + – himanich asked Jun 22, 2016 retagged Jun 23, 2017 by Arjun himanich 269 views answer comment Share Follow See 1 comment See all 1 1 comment reply sudoankit commented Dec 2, 2016 reply Follow Share D. Exactly one? 0 votes 0 votes Please log in or register to add a comment.