Form a polynomial f(x) with real coefficients having the given degree and zeros.Degree: 4; zeros: 2i and -4i
A. f(x) = x4 + 20x2 -4x + 64
B. f(x) = x4 + 20x2 + 64
C. f(x) = x4 - 2x3 + 20x2 + 64
D. f(x) = x4 - 4x2 + 64
Answer: B
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