Form a polynomial f(x) with real coefficients having the given degree and zeros.Degree: 4; zeros: 1, -1, and 4 - 2i
A. f(x) = x4 - 8x3 + 16x2 + 8x + 17
B. f(x) = x4 + 8x3 + 16x2 - 8x - 17
C. f(x) = x4 - 8x3 + 16x2 + 8x - 17
D. f(x) = x4 + 8x3 + 16x2 - 8x + 17
Answer: D
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A. 
B. 
C. 
D. 