|x^2+7x+9|=3

Lösung

x^{2} + 7 x + 9 = 3

x = - 6 or x = - 4 or x = - 3 or x = - 1

Schritte zur Lösung

x^{2} + 7 x + 9 = 3

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

x^{2} + 7 x + 9 = - 3 or x^{2} + 7 x + 9 = 3

x^{2} + 7 x + 9 = - 3 or x^{2} + 7 x + 9 = 3

(x = - 4 or x = - 3) or (x = - 6 or x = - 1)

x = - 6 or x = - 4 or x = - 3 or x = - 1

∣ - 2 u ∣ + 5 = 7

4 ∣ f ∣ = - 1

∣ x + 10 ∣ = 2

∣ x + 10 ∣ = 5

∣ w ∣ + 3 = 10