Question

What is the real roots of x^3-1=0

Answer 1

x^3-1= 0
x^3 = 1
x^3 = 1^3
cube root(x^3) = cuberoot(1^3)
x = 1

Answer 2

x = 1

Answer 3

x^3 - 1 = 0

(x-1)(x^2+x+1) = 0

x-1 = 0 --> x = 1

x^2 + x +1 = 0
--> x = (-1+-isqrt3)/2

Answer 4

dumb cow, it only wanted the real roots