|-2v-5|=17

Lösung

∣ - 2 v - 5 ∣ = 17

v = - 11 or v = 6

Schritte zur Lösung

∣ - 2 v - 5 ∣ = 17

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

- 2 v - 5 = - 17 or - 2 v - 5 = 17

- 2 v - 5 = - 17 or - 2 v - 5 = 17

v = - 11 or v = 6

y^{2} + 20 y - 9 = 0

9 x + 4 = 7 x + 4

x = 5 (90 - x)

2 x^{2} + 3 x = 65

s im pl i f y \frac{k ^{9}}{k ^{5}}