Form a polynomial f(x) with real coefficients having the given degree and zeros.Degree: 4; zeros: -1, 2, and 1 - 2i.
A. f(x) = x4 - 3x3 - 3x2 + 7x + 6
B. f(x) = x4 - 3x3 + 5x2 - x - 10
C. f(x) = x4 - x3 + x2 + 9x - 10
D. f(x) = x4 - x3 + 3x2 - 5x - 10
Answer: B
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