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受欢迎的代数 >

x^2+12x+936=0

解答

x^{2} + 12 x + 936 = 0

解答

x = - 6 + 30 i, x = - 6 - 30 i

求解步骤

x^{2} + 12 x + 936 = 0

使用求根公式求解

x_{1, 2} = \frac{- 12 \pm 1 2 ^{2} - 4 \cdot 1 \cdot 936}{2 \cdot 1}

化简

1 2^{2} - 4 \cdot 1 \cdot 936 : 60 i

x_{1, 2} = \frac{- 12 \pm 60 i}{2 \cdot 1}

将解分隔开

x_{1} = \frac{- 12 + 60 i}{2 \cdot 1}, x_{2} = \frac{- 12 - 60 i}{2 \cdot 1}

x = \frac{- 12 + 60 i}{2 \cdot 1} : - 6 + 30 i

x = \frac{- 12 - 60 i}{2 \cdot 1} : - 6 - 30 i

二次方程组的解是:

x = - 6 + 30 i, x = - 6 - 30 i

作图

流行的例子

x = x^{2} + 2

a^{2} - a - 7 = 0

(3 x - 1)^{2} = 108

z^{2} - 4 z + 1 = 0

solvefor x,x^2+4x+8=-2y^2

so l v e f or x, x^{2} + 4 x + 8 = - 2 y^{2}