What is the domain of the function
j(x) = 1/(x + 8) + 1/(x^2 + 8) + 1/(x^4 + 8)
Express your answer as a union of intervals.
The doamain is all 'x' except values that cause denominator of any of the terms to = 0
x cannot equal -8 is all
(- inf, -8) U (-8, + inf)