Write a quadratic equation in standard form with the given solution set. (Type an equation whose terms have 1 as their greatest common factor.)
{4i,-4i}
(x - 4i)(x + 4i) = 0
x^2 - (4i)^2 = 0
x^2 - 16i^2 = 0
x^2 + 16 = 0
{4i,-4i}
x^2 - (4i)^2 = 0
x^2 - 16i^2 = 0
x^2 + 16 = 0