a coefficient of some power of t in (t-x1)(t-x2) cdots(t-xn), for any n in n

listen to the pronunciation of a coefficient of some power of t in (t-x1)(t-x2) cdots(t-xn), for any n in n
a coefficient of some power of t in (t-x1)(t-x2) cdots(t-xn), for any n in n