t^2=20

Lösung

t^{2} = 20

t = 25, t = - 25

Dezimale

t = 4.47213 \dots, t = - 4.47213 \dots

Schritte zur Lösung

t^{2} = 20

Für

x^{2} = f (a)

sind die Lösungen

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

t = 20, t = - 20

20 = 25

- 20 = - 25

t = 25, t = - 25

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

x^{2} - 5 x + 27 = 21

- 16 t^{2} + 16 t + 96 = 0

g (n) = - 3 n^{2} + 7 n + 1

so l v e f or x, f = (y - 3 x)^{2}