2x^3-3x^2+2x-1식은주어진식.(x^2는x의제곱)가장먼저해야할것은x에1,2,3,-1,-2,-3을대입.1,2,3,-1,-2,-3을대입해보고그값이0이된다면조립제법을쓸수있습니다.
당신은 어느 그룹입니까?