|x+5|=7

Lösung

∣ x + 5 ∣ = 7

x = - 12 or x = 2

Schritte zur Lösung

∣ x + 5 ∣ = 7

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

x + 5 = - 7 or x + 5 = 7

x + 5 = - 7 or x + 5 = 7

x = - 12 or x = 2

x^{2} + 4 x = 45

x^{2} + 12 x = 9

s im pl i f y (- 1)^{- 2}

f a c t or d^{2} + 8 d + 15

s im pl i f y ln (a + b) + ln (a - b) - 2 ln (c)