|a+1|=11

Lösung

∣ a + 1 ∣ = 11

a = - 12 or a = 10

Schritte zur Lösung

∣ a + 1 ∣ = 11

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

a + 1 = - 11 or a + 1 = 11

a + 1 = - 11 or a + 1 = 11

a = - 12 or a = 10

∣ 6 x + 9 ∣ + 5 = 4

∣ a + 1 ∣ = - 3

x^{2} - ∣ 16 ∣ = 0

∣ 2 x + 2 ∣ = 2

∣ 2 x + 2 ∣ = 1