x^2-5=7

Lösung

x^{2} - 5 = 7

x = 23, x = - 23

Dezimale

x = 3.46410 \dots, x = - 3.46410 \dots

Schritte zur Lösung

x^{2} - 5 = 7

Verschiebe

5

auf die rechte Seite

x^{2} = 12

Für

x^{2} = f (a)

sind die Lösungen

x = f (a), - f (a)

x = 12, x = - 12

12 = 23

- 12 = - 23

x = 23, x = - 23

18 = x^{2} + 3 x

so l v e f or x, s (x) = 6 x^{2} + 3

x^{2} = 6 x - 13

x^{2} + x = 420

3 m^{2} - 4 = m