|x^2-7|=0

Lösung

x^{2} - 7 = 0

x = - 7 or x = 7

Dezimale

x = - 2.64575 \dots, x = 2.64575 \dots

Schritte zur Lösung

x^{2} - 7 = 0

Wende Absoluteregel an: Wenn

∣ u ∣ = 0

dann

u = 0

x^{2} - 7 = 0

x^{2} - 7 = 0 : x = 7, x = - 7

x = - 7 or x = 7

- 2 ∣ 6 x + 24 ∣ - 30 = - 42

∣ x + 4 ∣ - 5 = 4

so l v e f or x, ∣ 3 x - 4 ∣ = 6

∣ 4 x + 3 ∣ = - 2 x + 5

- 3 ∣ x ∣ = - 9