Question: find x
x^4-4x^2=4-x^2
Been a long time since i did anything with x^4.. did x^3 with no issues..
Thanks for any help.
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duh what savions said and there's one other way I could find the 2 imaginary roots
This gives x = ħi (iota)
Had to use http://www.hostmath.com/ for writing the mathematical notation.
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