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受欢迎的代数 >

64-27x^3=0

解答

64 - 27 x^{3} = 0

解答

x = \frac{4}{3}, x = - \frac{2}{3} + \frac{2}{3} i, x = - \frac{2}{3} - \frac{2}{3} i

求解步骤

64 - 27 x^{3} = 0

将

64

到右边

- 27 x^{3} = - 64

两边除以

- 27

x^{3} = \frac{64}{27}

对于

x^{3} = f (a)

解为

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

x = 3 \frac{64}{27}, x = 3 \frac{64}{27} \frac{- 1 + 3 i}{2}, x = 3 \frac{64}{27} \frac{- 1 - 3 i}{2}

3 \frac{64}{27} = \frac{4}{3}

化简

3 \frac{64}{27} \frac{- 1 + 3 i}{2} : - \frac{2}{3} + \frac{2}{3} i

化简

3 \frac{64}{27} \frac{- 1 - 3 i}{2} : - \frac{2}{3} - \frac{2}{3} i

x = \frac{4}{3}, x = - \frac{2}{3} + \frac{2}{3} i, x = - \frac{2}{3} - \frac{2}{3} i

作图

流行的例子

(4x-3)(3x-1)(2x-2pi)=0

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