Question

The sum of non-real roots of the polynomial equation x 3 + 3x 2 + 3x + 3 = 0

Answer 1

Answer:

roots of equation are

x^2(x+3) +3(x+1) =0

=x^2(x+1) +2x^2+3(x+1) =0

(x+1) (x^2+3) +2x^2=0

x=-1 x=0

sum is -1