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受欢迎的代数 >

z^3=8

解答

z^{3} = 8

解答

z = 2, z = - 1 + 3 i, z = - 1 - 3 i

求解步骤

z^{3} = 8

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}

z = 38, z = 38 \frac{- 1 + 3 i}{2}, z = 38 \frac{- 1 - 3 i}{2}

38 = 2

化简

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

化简

38 \frac{- 1 - 3 i}{2} : - 1 - 3 i

z = 2, z = - 1 + 3 i, z = - 1 - 3 i

作图

流行的例子

10000*x^{50}=1000000

10000 \cdot x^{50} = 1000000

x^{3} - 9 = 0

4 x^{2} + 15 x^{9} = 0

-((x^4))/(10)+14/15*x^3-2x^2=0

- \frac{( x ^{4} )}{10} + \frac{14}{15} \cdot x^{3} - 2 x^{2} = 0

x^{2} (x^{2} - 9) = - 20