|x^2-8|=1

Lösung

x^{2} - 8 = 1

x = - 3 or x = - 7 or x = 7 or x = 3

Dezimale

x = - 3, x = - 2.64575 \dots, x = 2.64575 \dots, x = 3

Schritte zur Lösung

x^{2} - 8 = 1

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

x^{2} - 8 = - 1 or x^{2} - 8 = 1

x^{2} - 8 = - 1 or x^{2} - 8 = 1

(x = - 7 or x = 7) or (x = - 3 or x = 3)

x = - 3 or x = - 7 or x = 7 or x = 3

19 = - 9 ∣ - 5 z - 3 ∣ - 8

63 = ∣ 5 - 4 x ∣

∣ 2 X - 3 ∣ + 1 = 8

3 = ∣ v - 5 ∣

∣ 3 v + 8 ∣ - 2 = - 6