Determine the x values that cause the polynomial function to be (a) zero, (b) positive, and (c) negative.f(x) = (x - 5)(3x + 5)(x + 3)
A. (a) 
, (b) (-?, -3) ? 
, (c) 
? (5, ?)
B. (a) 
, (b) (-3, 5), (c) (-?, -3) ? (5, ?)
C. (a) 
, (b) 
? (5, ?), (c) (-?, -3) ? 
D. (a) 
, (b) (-3, -5) ? (5, ?), (c) (-?, -3) ? (-5, 5)
Answer: C
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; b = 
A. y = - 
x + 
B. y = 
x + 
C. y = - 
x - 
D. y = 
x - 
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