Determine the solution to x2−4x2+1<0\frac{x^2 - 4}{x^2 + 1} < 0x2+1x2−4<0.
(−2,2)(-2, 2)(−2,2)
[−2,2][ -2, 2 ][−2,2]
(−∞,−2)∪(2,∞)(-\infty, -2) \cup (2, \infty)(−∞,−2)∪(2,∞)
No solution