|2x-9|=19

Lösung

∣ 2 x - 9 ∣ = 19

x = - 5 or x = 14

Schritte zur Lösung

∣ 2 x - 9 ∣ = 19

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

2 x - 9 = - 19 or 2 x - 9 = 19

2 x - 9 = - 19 or 2 x - 9 = 19

x = - 5 or x = 14

s im pl i f y \frac{2 x h + h ^{2}}{h}

\frac{5 - x}{12} = - 7

49 x^{2} + 14 x + 1 > 0

∣ 2 x + 3 ∣ > 5

x^{4} + 8 x^{3} < x + 8