c^2=25-9

Lösung

c^{2} = 25 - 9

c = 4, c = - 4

Schritte zur Lösung

c^{2} = 25 - 9

Subtrahiere die Zahlen:

25 - 9 = 16

c^{2} = 16

Für

x^{2} = f (a)

sind die Lösungen

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

c = 16, c = - 16

16 = 4

- 16 = - 4

c = 4, c = - 4

3 x^{2} + 3 x - 20 = 0

5 x^{2} = 75

0 = 3 x^{2} - 6

(2 x - 3) (2 x + 3) = 0

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