2a^2=18

Lösung

2 a^{2} = 18

a = 3, a = - 3

Schritte zur Lösung

2 a^{2} = 18

Teile beide Seiten durch

2

a^{2} = 9

Für

x^{2} = f (a)

sind die Lösungen

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

a = 9, a = - 9

9 = 3

- 9 = - 3

a = 3, a = - 3

2 x^{2} + 10 x + 2 = 0

z^{2} - 3 z + 2 = 0

so l v e f or x, x^{2} + y^{2} + z^{2} = 3

x (2 x + 3) = 14

0 = (x + 1)^{2}