Question: The function f(x)equalsStartFraction x cubed minus 21 x plus 20 Over x cubed minus 6 x squared plus 5 x plus 12 EndFraction is a

The function f(x)equalsStartFraction x cubed minus 21 x plus 20 Over x cubed minus 6 x squared plus 5 x plus 12 EndFraction is a rational function. Answer parts (a) - (i). Question content area bottom Part 1 a. Determine the domain. The domain of f is enter your response here. (Type your answer in interval notation. Use integers or fractions for any numbers in the expression.)

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