-2|-2x-4|=-12

Lösung

- 2 ∣ - 2 x - 4 ∣ = - 12

x = - 5 or x = 1

Schritte zur Lösung

- 2 ∣ - 2 x - 4 ∣ = - 12

Teile beide Seiten durch

- 2

∣ - 2 x - 4 ∣ = 6

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

- 2 x - 4 = - 6 or - 2 x - 4 = 6

- 2 x - 4 = - 6 or - 2 x - 4 = 6

x = - 5 or x = 1

∣ x + 5 ∣ = 9

∣ x ∣ - 4 = 0

4 ∣ 2 x - 1 ∣ - 11 = - 6

- 4 ∣ 7 - a ∣ = - 36

∣ x + 3 ∣ = x - 5