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OpenStudy (anonymous):
is it possible to find a polynomial f(x) of degree 4 with real coefficients that has a zero -3,1+2i, and 1-i
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OpenStudy (cwrw238):
a degree 4 polynomial with real coefficients will have 4 roots all or 2 of which might be complex numbers . The complex numbers will be in pairs ( conjugates) . the combination you stated is not possible.
OpenStudy (anonymous):
OP probably meant 1-2i
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