Given the polynomial P(x)=x³−2x²−13x−10, one root of the polynomial is x=5.5. Use synthetic division to factor out x−5. Enter the values for a, b, and c in the factored form P(x)=(x−5)(ax²+bx+c).

a=____,b=____,c=____

Select all the roots of the polynomial function:

A) 2
B) 1
C) 0
D) 1
E) 2
F) 5