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受欢迎的代数 >

(x-5)^3=216

解答

(x - 5)^{3} = 216

解答

x = 11, x = 2 + 33 i, x = 2 - 33 i

求解步骤

(x - 5)^{3} = 216

对于

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

解为

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

解

x - 5 = 3216 : x = 11

解

x - 5 = 3216 \frac{- 1 + 3 i}{2} : x = 2 + 33 i

解

x - 5 = 3216 \frac{- 1 - 3 i}{2} : x = 2 - 33 i

解为

x = 11, x = 2 + 33 i, x = 2 - 33 i

作图

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