80=x^2

Lösung

80 = x^{2}

x = 45, x = - 45

Dezimale

x = 8.94427 \dots, x = - 8.94427 \dots

Schritte zur Lösung

80 = x^{2}

Tausche die Seiten

x^{2} = 80

Für

x^{2} = f (a)

sind die Lösungen

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

x = 80, x = - 80

80 = 45

- 80 = - 45

x = 45, x = - 45

x^{2} - 9 = 160

- x^{2} - 10 x + 15 = 0

(x - a + 2) (x - a + 3) = 42

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

co m pl e t es q u a re x^{2} - 2 x + 8