x^2-3x-28>0

Lösung

x^{2} - 3 x - 28 > 0

x < - 4 or x > 7

Intervall-Notation

(- \infty, - 4) \cup (7, \infty)

Schritte zur Lösung

x^{2} - 3 x - 28 > 0

Faktorisiere

x^{2} - 3 x - 28 : (x + 4) (x - 7)

(x + 4) (x - 7) > 0

Identifiziere die Intervalle

x < - 4 or x > 7

- 3 x + 8 - 5 x = 21 - 8 x

5 (x - 8) = 55

43 = 8 c - 5

f a c t or 25 p^{2} - 5 p - 2

x^{2} - 4 x - 100 = 0