Question

How would I write a quadratic equation having the given numbers as solutions
4i, -4i

Answer 1

factors would be
(x-4i)(x+4i)
so x^2 - 16i^2 = 0
x^2 + 16 = 0

or x = ±4i
square both sides
x^2 = 16i^2
x^2 = -16
x^2 + 16 = 0

Answer 2

i liked YAY MATH! the best. it was funny but it also taught me alot, of ourcse i doubt i'll remember any of it in the mornin, but i watched the rest of the magician video and learned how to like multiply square routes or whatever, partially. i didn't really like the like math playground place, i got sorta confused there, but i like the like cool math one. i played this game though called like snorzies, i have no idea how i ended up on it, but that wasn't exactly related to math, but i saw some other things that were useful on the cool math page.