|6+3a|=15

Lösung

∣ 6 + 3 a ∣ = 15

a = - 7 or a = 3

Schritte zur Lösung

∣ 6 + 3 a ∣ = 15

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

6 + 3 a = - 15 or 6 + 3 a = 15

6 + 3 a = - 15 or 6 + 3 a = 15

a = - 7 or a = 3

6 x^{2} - 14 x - 9 = 0

f a c t or 36 a^{2} - 49

4 x - 3 < 9

s im pl i f y \frac{7}{5} - 1

s im pl i f y ln (e^{- 9})