3x^2=49

Lösung

3 x^{2} = 49

x = \frac{7}{3}, x = - \frac{7}{3}

Dezimale

x = 4.04145 \dots, x = - 4.04145 \dots

Schritte zur Lösung

3 x^{2} = 49

Teile beide Seiten durch

3

x^{2} = \frac{49}{3}

Für

x^{2} = f (a)

sind die Lösungen

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

x = \frac{49}{3}, x = - \frac{49}{3}

\frac{49}{3} = \frac{7}{3}

- \frac{49}{3} = - \frac{7}{3}

x = \frac{7}{3}, x = - \frac{7}{3}

3 x^{2} = 45

3 x^{2} = 42

0 = - x^{2} + 8 x + 20

x^{2} - (n - 3) x - 3 n = 0

(x + 4) (x - 3) = - 5 x - 11