|3x-7|=20

Lösung

∣ 3 x - 7 ∣ = 20

x = - \frac{13}{3} or x = 9

Dezimale

x = - 4.33333 \dots, x = 9

Schritte zur Lösung

∣ 3 x - 7 ∣ = 20

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

3 x - 7 = - 20 or 3 x - 7 = 20

3 x - 7 = - 20 or 3 x - 7 = 20

x = - \frac{13}{3} or x = 9

x^{2} - 4 x - 5 > 0

2 x + 8 = 16

s im pl i f y (\frac{( - 1 + i 3 )}{2})^{2}

12 x^{2} + 4 x - 5 = 0

- 16 t^{2} + 40 t + 5 = 0