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受欢迎的代数 >

x^2-25=0,y^3=216

解答

x^{2} - 25 = 0, y^{3} = 216

解答

x = - 5, x = - 5, x = - 5, x = 5, x = 5, x = 5, y = 6 y = - 3 + 33 i y = - 3 - 33 i y = 6 y = - 3 + 33 i y = - 3 - 33 i

求解步骤

[x^{2} - 25 = 0 y^{3} = 216]

解

x^{2} - 25 = 0 : x = - 5, x = 5

对于

y^{3} = 216

，用

- 5

替代

x : y = 6, y = - 3 + 33 i, y = - 3 - 33 i

对于

y^{3} = 216

，用

5

替代

x : y = 6, y = - 3 + 33 i, y = - 3 - 33 i

解

y^{3} = 216 : y = 6, y = - 3 + 33 i, y = - 3 - 33 i

对于

x^{2} - 25 = 0

，用

6

替代

y : x = 5, x = - 5

对于

x^{2} - 25 = 0

，用

- 3 + 33 i

替代

y : x = 5, x = - 5

对于

x^{2} - 25 = 0

，用

- 3 - 33 i

替代

y : x = 5, x = - 5

将解代入原方程进行验证

因而，

x^{2} - 25 = 0, y^{3} = 216

最后的解是

x = - 5, x = - 5, x = - 5, x = 5, x = 5, x = 5, y = 6 y = - 3 + 33 i y = - 3 - 33 i y = 6 y = - 3 + 33 i y = - 3 - 33 i

作图

流行的例子

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