x^3=888

解

x^{3} = 888

x = 23111, x = - 3111 + 31113 i, x = - 3111 - 31113 i

解答ステップ

x^{3} = 888

x^{3} = f (a)

では, 解は

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

x = 3888, x = 3888 \frac{- 1 + 3 i}{2}, x = 3888 \frac{- 1 - 3 i}{2}

3888 = 23111

簡素化

3888 \frac{- 1 + 3 i}{2} : - 3111 + 31113 i

簡素化

3888 \frac{- 1 - 3 i}{2} : - 3111 - 31113 i

x = 23111, x = - 3111 + 31113 i, x = - 3111 - 31113 i