Question

what are the zeros of P(x)=-3(x-2)(x+1)(x+i)(x-i)

Answer 1

Umm.... did you do a mistake with i?

Answer 2

no, those are imaginary

Answer 3

Hint: set each factor equal to zero, then solve for x:

x - 2 = 0
x + 1 = 0
x + i = 0
x - i = 0

Answer 4

thanks, i got that much.. but wasn't so sure