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受欢迎的代数 >

solvefor x,4x^3+y=0

解答

求解

x, 4 x^{3} + y = 0

解答

x = - 3 \frac{y}{4}, x = - \frac{3 y ( - 1 + 3 i )}{2 3 4}, x = - \frac{3 y ( - 1 - 3 i )}{2 3 4}

求解步骤

4 x^{3} + y = 0

将

y

到右边

4 x^{3} = - y

两边除以

4

x^{3} = - \frac{y}{4}

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{y}{4}, x = 3 - \frac{y}{4} \frac{- 1 + 3 i}{2}, x = 3 - \frac{y}{4} \frac{- 1 - 3 i}{2}

化简

3 - \frac{y}{4} : - 3 \frac{y}{4}

化简

3 - \frac{y}{4} \frac{- 1 + 3 i}{2} : - \frac{3 y ( - 1 + 3 i )}{2 3 4}

化简

3 - \frac{y}{4} \frac{- 1 - 3 i}{2} : - \frac{3 y ( - 1 - 3 i )}{2 3 4}

x = - 3 \frac{y}{4}, x = - \frac{3 y ( - 1 + 3 i )}{2 3 4}, x = - \frac{3 y ( - 1 - 3 i )}{2 3 4}

作图

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