Find all rational zeros of f. Then (if necessary) use the depressed equation to find all roots of the equation f(x) = 0.f(x) = x3 - 6x2 + 7x + 4
A. {-4, -1 - 
, -1 + 
}
B. {-4, 1 - 
, 1 + 
}
C. {4, -1 - 
, -1 + 
}
D. {4, 1 - 
, 1 + 
}
Answer: D
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B. 
C. 
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