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OpenStudy (anonymous):
Find a third-degree polynomial equation with rational coefficients that has the roots 2 and -3 + i. 0 = x3 + 8x2 + 22x + 20 0 = x3 + 4x2 - 2x - 20 0 = x3 + 4x2 + 22x - 20 0 = x3 - 4x2 - 2x + 20
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