|j+2|=4

Lösung

∣ j + 2 ∣ = 4

j = - 6 or j = 2

Schritte zur Lösung

∣ j + 2 ∣ = 4

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

j + 2 = - 4 or j + 2 = 4

j + 2 = - 4 or j + 2 = 4

j = - 6 or j = 2

∣ 6 x + 7 ∣ + 9 = 8

∣ 2 x + 8 ∣ = 8

∣ 2 x + 8 ∣ = 3

∣ 2 x + 8 ∣ = 4

z^{2} ∣ z + 1 ∣ - 3 = z - 2