Answer: you can multiply it out.
Explanation:
If any factor of a factored polynomial is zero, the whole polynomial is zero.
One factor has to be zero when x is 2. That factor is x-2. The others are x+1 and x-3.
The polynomial is (x-2)(x+1)(x-3). This is obviously a degree three polynomial, and it's zeros are obviously 2, -1, and 3.