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OpenStudy (anonymous):
Shayna plotted the four vertices of a quadrilateral in the complex plane and then encoded the points in a polynomial p(x) by making them the roots of p(x). The polynomial p(x) is x^4 - 9x^3+ 27x^2 + 23x - 150. So I found the two real zeros 3, -2 with my graphing calculator and tested them with synthetic division. Now how do I find the complex roots?
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OpenStudy (mertsj):
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