n^2=20

Lösung

n^{2} = 20

n = 25, n = - 25

Dezimale

n = 4.47213 \dots, n = - 4.47213 \dots

Schritte zur Lösung

n^{2} = 20

Für

x^{2} = f (a)

sind die Lösungen

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

n = 20, n = - 20

20 = 25

- 20 = - 25

n = 25, n = - 25

2.5 x - 4 = x + 5

36 + x^{2} = 144

f a c t or 10 x - 5 x^{3}

x^{2} - 8 x - 1 = 0

s im pl i f y (\frac{2}{3} - \frac{5}{9})^{2}