Question

write a polynomial function in standard form with real coefficients whose zeros include 3, 10i, -10i

Answer 1

set 10i and -10i equal to x first

Answer 2

so x=10i and -10i

Answer 3

move everything to one side so you get 0 on the otherside

Answer 4

x-10i=0 and x+10i=0

Answer 5

foil those two functions and what did you get?