____ ____ ____ ____
[-4 - \/ 17 , -4 - \/ 15 ] U [-4 + \/ 15 , -4 + \/ 17 ]
$$x\ in\ \left[- \sqrt{17} - 4, -4 - \sqrt{15}\right] \cup \left[-4 + \sqrt{15}, -4 + \sqrt{17}\right]$$
x in Union(Interval(-4 + sqrt(15), -4 + sqrt(17)), Interval(-sqrt(17) - 4, -4 - sqrt(15)))
/ / ____ ____ \ / ____ ____ \\
Or\And\x <= -4 - \/ 15 , -4 - \/ 17 <= x/, And\x <= -4 + \/ 17 , -4 + \/ 15 <= x//
$$\left(x \leq -4 - \sqrt{15} \wedge - \sqrt{17} - 4 \leq x\right) \vee \left(x \leq -4 + \sqrt{17} \wedge -4 + \sqrt{15} \leq x\right)$$
((x <= -4 + sqrt(17))∧(-4 + sqrt(15) <= x))∨((x <= -4 - sqrt(15))∧(-4 - sqrt(17) <= x))