Posted by dani on .
How would I write a quadratic equation having the given numbers as solutions
4i, 4i

Algebra 
Reiny,
factors would be
(x4i)(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 
Algebra 
SmsUiKrTHPuwAW,
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