Find all of the real zeros of the function. Give exact values whenever possible. Identify each zero as rational or irrational.f(x) = 6x3 + 25x2 + 12x - 7
A. - 
(rational), - 
(rational), 
(rational)
B. 
(rational) (multiplicity 2); - 
(rational)
C. - 1 (rational), 
(rational), 
(rational)
D. - 1 (rational), - 
(rational), 
(rational)
Answer: D
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