How do you tell which radical is the largest? (elementary algebra)

by by by by by ANGLES. :)

Ithink if im not mistaking b is -3 but im not a 100% sude

Answerthe simplified expression isexplanationthe given expression is,let us deal with the bracket first.the two negatives in the parenthesis will become positive.the expression now becomes,we now expand the parenthesis to get,we group like terms to obtain,this simplifies to,