document.write( "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.
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Algebra.Com's Answer #20883 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
2i is not a root of the polynomial you posted.
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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