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 - 9x2 + 12x + 14

A. {7, 1 - , 1 + }
B. {7, -1 - , -1 + }
C. {-7, -1 - , -1 + }
D. {-7, 1 - , 1 + }


Answer: A

Mathematics

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