Posted by tan on Thursday, November 15, 2012 at 2:54pm.
Write a quadractic equation having given equations?
9,9i

math  nerd45623, Thursday, November 15, 2012 at 3:39pm
9i your welcome young solder

math  Steve, Thursday, November 15, 2012 at 4:00pm
if you mean the given roots, you are out of luck if you want real coefficients.
If you have a typo and meant 9+9i, then the other root is 99i, so the quadratic is
(x(9+9i))(x(99i))
= ((x9)+9i)((x9)9i)
= (x9)^2 + 9^2
= x^2  18x + 162
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