For this case we have the following function:
x ^ 3-9x ^ 2 + 20x-12 = 0
Rewriting we have:
(x-6) * (x-2) * (x-1) = 0
Therefore, the solutions are given by:
Solution 1:
x-6 = 0
x = 6
Solution 2:
x-2 = 0
x = 2
Solution 3:
x-1 = 0
x = 1
Answer:
x = 6
x = 2
x = 1