|3x+x|=4

Lösung

∣ 3 x + x ∣ = 4

x = - 1 or x = 1

Schritte zur Lösung

∣ 3 x + x ∣ = 4

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

3 x + x = - 4 or 3 x + x = 4

3 x + x = - 4 or 3 x + x = 4

x = - 1 or x = 1

∣ x + 3 ∣ = 5

- 3 = (x - 2)^{2} - 7

s im pl i f y 21

f a c t or 2 x z - 6 x y + 2 yz - 6 y^{2}

m^{2} - 6 m + 9 = 0