SOLUTION: How do I solve this equation on a TI-83 calculator. x^4+5x^2+4=0 given that 2i is a root. Thanks. My test is tomorrow.

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Question 30945: How do I solve this equation on a TI-83 calculator. x^4+5x^2+4=0 given that 2i is a root.
Thanks.
My test is tomorrow.
Answer by stanbon(57356) About Me  (Show Source):
You can put this solution on YOUR website!
2i is not a root of the polynomial you posted.
Check again.
Cheers,
Stan H.