Find all roots of P(x)=x3−x2−x+1P(x) = x^3 - x^2 - x + 1P(x)=x3−x2−x+1.
x=−1,1,1x = -1, 1, 1x=−1,1,1
x=1,1,−1x = 1, 1, -1x=1,1,−1
x=2,−1,0x = 2, -1, 0x=2,−1,0
x=0,1,−1x = 0, 1, -1x=0,1,−1