Find all real values of x such that f(x) = 0.
?
f(x) = x3 - x2 - 9x + 9
?

A. x = 0, 3
B. x = 1, -3
C. x = 0, -3
D. x = 1, 3
E. x = 1, ±3


Answer: E

Mathematics

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