|x^2 - 4| + |x + 3| ≤ 5
Fallgrenzen
x^2 - 4 = 0 --> x = -2 ∨ x = 2
x + 3 = 0 --> x = -3
Fall 1: x ≤ -3
(x^2 - 4) - (x + 3) ≤ 5 --> -3 ≤ x ≤ 4
Fall 2: -3 ≤ x ≤ -2
(x^2 - 4) + (x + 3) ≤ 5 --> -3 ≤ x ≤ 2
Fall 3: -2 ≤ x ≤ 2
- (x^2 - 4) + (x + 3) ≤ 5 --> x ≤ -1 ∨ x ≥ 2
Fall 4: x ≥ 2
(x^2 - 4) + (x + 3) ≤ 5 --> -3 ≤ x ≤ 2
Zusammenführung der Lösung
x = 2 ∨ -3 ≤ x ≤ -1