What is the domain of the function f(x)=x−3x2−16f(x) = \frac{\sqrt{x-3}}{x^2-16}f(x)=x2−16x−3?
[3,∞)[3, \infty)[3,∞)
[3,4)∪(4,∞)[3, 4) \cup (4, \infty)[3,4)∪(4,∞)
(3,4)∪(4,∞)(3, 4) \cup (4, \infty)(3,4)∪(4,∞)
(−∞,−4)∪(−4,4)∪(4,∞)(-\infty, -4) \cup (-4, 4) \cup (4, \infty)(−∞,−4)∪(−4,4)∪(4,∞)