217b^3=3-10

Lösung

217 b^{3} = 3 - 10

b = - \frac{1}{3 31}, b = \frac{1}{2 3 31} - \frac{3}{2 3 31} i, b = \frac{1}{2 3 31} + \frac{3}{2 3 31} i

Schritte zur Lösung

217 b^{3} = 3 - 10

Subtrahiere die Zahlen:

3 - 10 = - 7

217 b^{3} = - 7

Teile beide Seiten durch

217

b^{3} = - \frac{1}{31}

Für

x^{3} = f (a)

sind die Lösungen

x = 3 f (a), 3 f (a) \frac{- 1 - 3 i}{2}, 3 f (a) \frac{- 1 + 3 i}{2}

b = 3 - \frac{1}{31}, b = 3 - \frac{1}{31} \frac{- 1 + 3 i}{2}, b = 3 - \frac{1}{31} \frac{- 1 - 3 i}{2}

3 - \frac{1}{31} = - \frac{1}{3 31}

Vereinfache

3 - \frac{1}{31} \frac{- 1 + 3 i}{2} : \frac{1}{2 3 31} - \frac{3}{2 3 31} i

Vereinfache

3 - \frac{1}{31} \frac{- 1 - 3 i}{2} : \frac{1}{2 3 31} + \frac{3}{2 3 31} i

b = - \frac{1}{3 31}, b = \frac{1}{2 3 31} - \frac{3}{2 3 31} i, b = \frac{1}{2 3 31} + \frac{3}{2 3 31} i

\frac{3 y}{4} = 6

so l v e f or x, 6 x - 24 = 18 y

- 2 (9 x - 1) = - (x - 9) - 7 x - (x - 9) - 7 x

2 x - (5 x - 2) = 4

2 x - 3 = - 7