Quandaries and Queries


how to find the roots of a polynomial equation if it would be imaginary?


Hi Jennifer,

If your polynomial is a quadratic you can use the general quadratic which will give any imaginary or complex roots. If the polynomial is a cubic or a quadratic then there are expressions, like the general quadratic, that will find the roots, but these are not often used. If you can not factor your ploynomial into linear or quadratic factors then the procedure that is most often used is to approximate the roots.



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