State how many complex and real zeros the function has.f(x) = x3 - 20x2 + 123x - 216
A. 3 complex zeros; 2 real
B. 3 complex zeros; all 3 real
C. 3 complex zeros; 1 real
D. 3 complex zeros; none real
Answer: B
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A. 
B. 
C. 3
D. 
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B. 
C. 
D. 