|x|<2

Lösung

∣ x ∣ < 2

- 2 < x < 2

Intervall-Notation

(- 2, 2)

Schritte zur Lösung

∣ x ∣ < 2

Wende Absoluteregel an: Wenn

∣ u ∣ < a, a > 0

dann

- a < u < a

- 2 < x < 2

f a c t or 7 n^{2} + 9 n + 2

\frac{f}{4} - 4 = 1

x^{2} = - 5 x - 12

2 (x + 7) = x + 17

f a c t or x^{4} - 9 x^{2} + 8