How many real numbers are not in the domain of the function
f(x) = 1/(x - 64) + 1/(x^2 - 64) + 1/(x^3 - 64) + 1/(x^4 - 64)
Six
x values that make ANY of the denominators = 0 are not in the domain of the function
x = 64 8 or -8 4 or +- sqrt 8