x^2+20^2=25^2

Lösung

x^{2} + 2 0^{2} = 2 5^{2}

x = 15, x = - 15

Schritte zur Lösung

x^{2} + 2 0^{2} = 2 5^{2}

Verschiebe

2 0^{2}

auf die rechte Seite

x^{2} = 225

Für

x^{2} = f (a)

sind die Lösungen

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

x = 225, x = - 225

225 = 15

- 225 = - 15

x = 15, x = - 15

14 x^{2} - 31 x - 10 = 0

6 (x + 8) (8 x + 1) = 0

x^{2} + 14 x - 75 = - 3

9 - (\frac{x}{2})^{2} = 6 - x

x^{2} - 4 x + 1 (m + 1) = 0.8