Solve ∣x2−4x∣<5|x^2 - 4x| < 5∣x2−4x∣<5.
(−1,5)(-1, 5)(−1,5)
(−1,1)∪(3,5)(-1, 1) \cup (3, 5)(−1,1)∪(3,5)
(−1,5)(-1, 5)(−1,5) but excluding roots
(−1,5)(-1, 5)(−1,5) excluding x=2x=2x=2