Question

The roots of an equation are x = -1 ± i.

Answer 1

x^2+( )+2=0

Answer 2

...

Answer 3

assume m = -1 + i , L = -1 - i
the sum of them = -1 + i -1 - i = -2
the mul = (-1 + i ) ( -1 - i ) = 1 - (i^2) = 2
so it's 2