l presume you mean imaginary numbers?
3x^2 + 3 =0
3x^2 = -3
x^2 = -1
Since you sqaure root a negative 1 to get x....
x = i
3x^2 + 3 = 0 divide through by 3
x^2 + 1 = 0 subtract 1 from both sides
x^2 = -1 take the pos/neg roots
x = ±√-1
x = i or x = - i
l presume you mean imaginary numbers?
3x^2 + 3 =0
3x^2 = -3
x^2 = -1
Since you sqaure root a negative 1 to get x....
x = i