Determine the x values that cause the polynomial function to be (a) zero, (b) positive, and (c) negative.f(x) = (x + 8)3(4x2 + 3)(x - 8)4

A. (a) {-8, 8}, (b) (8, ?), (c) (-?, 8)
B. (a) {-8, 8}, (b) (-8, ?) (c) (-?, -8)
C. (a) {-8, 8}, (b) (-8, 8), (c) (-?, -8) ? (8, ?)
D. (a) {-8, 8}, (b) (-8, 8) ? (8, ?) (c) (-?, -8)


Answer: D

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