|5x|=4

Lösung

∣ 5 x ∣ = 4

x = - \frac{4}{5} or x = \frac{4}{5}

Dezimale

x = - 0.8, x = 0.8

Schritte zur Lösung

∣ 5 x ∣ = 4

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

5 x = - 4 or 5 x = 4

5 x = - 4 or 5 x = 4

x = - \frac{4}{5} or x = \frac{4}{5}

- 6 \leq 6 x + 3 \leq 21

x^{2} - 2 x - 7 < 1

f a c t or (x^{3} - 6 x^{2} + 5 x)^{3}

2 x + 5 = 9

2 (- 6 y + 7) - 9 y = 14