___ ___ ___ ___
(-oo, 2 - \/ 7 ) U (1 - \/ 2 , 1 + \/ 2 ) U (2 + \/ 7 , oo)
$$x\ in\ \left(-\infty, 2 - \sqrt{7}\right) \cup \left(1 - \sqrt{2}, 1 + \sqrt{2}\right) \cup \left(2 + \sqrt{7}, \infty\right)$$
x in Union(Interval.open(-oo, 2 - sqrt(7)), Interval.open(1 - sqrt(2), 1 + sqrt(2)), Interval.open(2 + sqrt(7), oo))
/ / ___\ / ___ \ / ___ ___ \\
Or\And\-oo < x, x < 2 - \/ 7 /, And\x < oo, 2 + \/ 7 < x/, And\x < 1 + \/ 2 , 1 - \/ 2 < x//
$$\left(-\infty < x \wedge x < 2 - \sqrt{7}\right) \vee \left(x < \infty \wedge 2 + \sqrt{7} < x\right) \vee \left(x < 1 + \sqrt{2} \wedge 1 - \sqrt{2} < x\right)$$
((x < oo)∧(2 + sqrt(7) < x))∨((-oo < x)∧(x < 2 - sqrt(7)))∨((x < 1 + sqrt(2))∧(1 - sqrt(2) < x))