For what values of xxx is x+1x3−x\dfrac{x + 1}{x^3 - x}x3−xx+1 undefined?
x=0,1,−1x = 0, 1, -1x=0,1,−1
x=0x = 0x=0 only
x=1x = 1x=1 and x=−1x = -1x=−1
x=−1x = -1x=−1 only