Question 268251
{{{x^3-3x^2-x+3=0}}}
{{{x^2(x-3) -x+3=0}}}
{{{x^2(x-3) -(x+3) = 0}}}
{{{(x^2-1)(x-3)=0}}}
{{{(x-1)(x+1)(x-3)=0}}}
x = 1, -1 or 3
Check your answer here
http://www.wolframalpha.com/input/?i=x^3-3x^2-x%2B3%3D0