Find all roots of x3+3x2−4=0x^3 + 3x^2 - 4 = 0x3+3x2−4=0.
x=1x = 1x=1 (one real root)
x=−2,1,2x = -2, 1, 2x=−2,1,2
x=−1,2,−2x = -1, 2, -2x=−1,2,−2
x=1,−2±i3x = 1, -2 \pm i\sqrt{3}x=1,−2±i3