(a) Use a graph to find a rational root of the polynomial function and factor f into a linear factor and a quadratic factor. (b) Find two complex roots of f. f(x) = x3 + 2x2 + 49x + 98
A. (a) x = -2, f(x) = (x + 2)(x2 + 49)
(b) x = ± 7i
B. (a) x = -2, f(x) = (x + 2)(x2 + 49)
(b) x = ± 49i
C. (a) x = -2, f(x) = (x + 2)(x2 + 7)
(b) x = ± 
i
D. (a) x = -2, f(x) = (x + 2)(x2 + 49x + 98)
(b) x = ± 7i
Answer: A
Mathematics
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