27x^2=12

Lösung

27 x^{2} = 12

x = \frac{2}{3}, x = - \frac{2}{3}

Dezimale

x = 0.66666 \dots, x = - 0.66666 \dots

Schritte zur Lösung

27 x^{2} = 12

Teile beide Seiten durch

27

x^{2} = \frac{4}{9}

Für

x^{2} = f (a)

sind die Lösungen

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

x = \frac{4}{9}, x = - \frac{4}{9}

\frac{4}{9} = \frac{2}{3}

- \frac{4}{9} = - \frac{2}{3}

x = \frac{2}{3}, x = - \frac{2}{3}

- 2 x^{2} + 6 x + 7 = 2 x - 3

x^{2} + 2 x + 20 = - 9

7 x^{2} - 5 = 0

x^{2} - 2 x + 1 = 80

3 a^{2} - a + 2 = 7 a