(2x+1)^3=9.81

Lösung

(2 x + 1)^{3} = 9.81

x = 0.57035 \dots, x = - 1.03517 \dots + 0.92695 \dots i, x = - 1.03517 \dots - 0.92695 \dots i

Schritte zur Lösung

(2 x + 1)^{3} = 9.81

Für

g^{3} (x) = f (a)

sind die Lösungen

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

Löse

2 x + 1 = 3 9.81 : x = 0.57035 \dots

Löse

2 x + 1 = 3 9.81 \frac{- 1 + 3 i}{2} : x = - 1.03517 \dots + 0.92695 \dots i

Löse

2 x + 1 = 3 9.81 \frac{- 1 - 3 i}{2} : x = - 1.03517 \dots - 0.92695 \dots i

Die Lösungen sind

x = 0.57035 \dots, x = - 1.03517 \dots + 0.92695 \dots i, x = - 1.03517 \dots - 0.92695 \dots i

\frac{x ^{4}}{2 + 5} = 18.5

d^{3} - 4 d^{2} + 5 d - 2 = 0

so l v e f or x, x^{3} - y^{3} = 0

(x - 4)^{3} = 0

(x - 4)^{3} = 1