r^2=81

Lösung

r^{2} = 81

r = 9, r = - 9

Schritte zur Lösung

r^{2} = 81

Für

x^{2} = f (a)

sind die Lösungen

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

r = 81, r = - 81

81 = 9

- 81 = - 9

r = 9, r = - 9

co m pl e t es q u a re 9 x^{2} - 6 x

3 y (y) = x^{2} + 12

(4 x - 3)^{2} + (4 x + 3)^{2} = 25

4 x^{2} + 3 x = c

100 - 4 x = 0.6 x^{2} - 12 x + 80