Factor the polynomial x3 - 27x.
A. x(x + 3
)(x - 3
)
B. x2 (x + 3)
C. (x + 3)2 (x- 3)
D. x(x + 3)(x - 3)
E. none of these
Answer: A
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A. f(x) = 
B. f(x) = 
C. f(x) = 
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