What is a polynomial function of least degree with integral coefficients the zeros of which include 2 and 1 + i? /1
A. x2 – 3x + 2 – xi + 2i
B. x2 – 2x + 2
C. x3 – 4x2 + 6x – 4
D. x3 + 6x – 4
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Answer:
C is the answer
can get it by substituting the roots in the eq and note that an quadratic can't be an answer
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