The correct option is B 3
Given: x5–6x4+11x3–5x2–3x+2=0
Equation can be written as: x4(x−1)−5x3(x−1)+6x2(x−1)+x(x−1)−2(x−1)=0⇒(x−1)(x4−5x3+6x2+x−2)=0⇒(x−1)(x4−2x3−3x3+6x2+x−2)=0⇒(x−1)(x3(x−2)−3x2(x−2)+1(x−2))=0⇒(x−1)(x−2)(x3−3x2+1)=0
Equation (x3−3x2+1=0) has all the non-integer roots.
Thus, sum of the all the non-integer roots of the above equation
=−coeff. of x2 coeff. of x3=−−31=3