Question 220158
 Give the domain 
f(x)= x^4+4/x^2+6x-16
Factor where you can:
f(x)=[x^4+4]/[(x+8)(x-2)]
Comment:  Only x=-8 and x=2 are 
excluded from the domain.  Your
answer does not include the values
of "x" between -8 and 2.
The book's answer covers all Real
Numbers except x=-8 and x=2, which
is the correct answer.
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Cheers,
Stan H. 
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