8x^2=-128

Lösung

8 x^{2} = - 128

x = 4 i, x = - 4 i

Schritte zur Lösung

8 x^{2} = - 128

Teile beide Seiten durch

8

x^{2} = - 16

Für

x^{2} = f (a)

sind die Lösungen

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

x = - 16, x = - - 16

- 16 = 4 i

- - 16 = - 4 i

x = 4 i, x = - 4 i

so l v e f or y, x^{2} + y^{2} - 5 = 2 x y + y^{2} - 5

x^{2} + 6 = 8 x

so l v e f or x, x^{2} - 15 x = 0

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

(x - 4)^{2} = 180