Respuesta :

Answer:

all reals except 3 & 4

Step-by-step explanation:

recall you cannot have a 0 in the denominator.  

any values of x that would produce a 0 in the denominator are excluded from the domain

factor [tex]x^{2} -7x+12[/tex]    Factors -3, -4

                                  (x-3)(x-4)

x cannot be 3 or 4

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