Find the critical points of f(x)=x3−3xf(x) = x^3 - 3xf(x)=x3−3x.
x=1,−1x = 1, -1x=1,−1
x=3,−3x = \sqrt{3}, -\sqrt{3}x=3,−3
x=0x = 0x=0
x=3,−3x = 3, -3x=3,−3