You can put this solution on YOUR website! x^3-6x^2+11x-6
if 3 is a zero then (x-3) is a factor
divide x^3-6x^2+11x-6 by (x-3)
and get
x^2-3x+2
which you can factor or use the quadratic formula to find the other zeros
(x-1)*(x-2)
the other zeros are 1 and 2