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受欢迎的代数 >

3x^2+12=3

解答

3 x^{2} + 12 = 3

解答

x = 3 i, x = - 3 i

求解步骤

3 x^{2} + 12 = 3

将

12

到右边

3 x^{2} = - 9

两边除以

3

x^{2} = - 3

对于

x^{2} = f (a)

解为

x = f (a), - f (a)

x = - 3, x = - - 3

- 3 = 3 i

- - 3 = - 3 i

x = 3 i, x = - 3 i

作图

流行的例子

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