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受欢迎的代数 >

6x^2+36x+36=0

解答

6 x^{2} + 36 x + 36 = 0

解答

x = - 3 + 3, x = - 3 - 3

+1

十进制

x = - 1.26794 \dots, x = - 4.73205 \dots

求解步骤

6 x^{2} + 36 x + 36 = 0

使用求根公式求解

x_{1, 2} = \frac{- 36 \pm 3 6 ^{2} - 4 \cdot 6 \cdot 36}{2 \cdot 6}

3 6^{2} - 4 \cdot 6 \cdot 36 = 123

x_{1, 2} = \frac{- 36 \pm 12 3}{2 \cdot 6}

将解分隔开

x_{1} = \frac{- 36 + 12 3}{2 \cdot 6}, x_{2} = \frac{- 36 - 12 3}{2 \cdot 6}

x = \frac{- 36 + 12 3}{2 \cdot 6} : - 3 + 3

x = \frac{- 36 - 12 3}{2 \cdot 6} : - 3 - 3

二次方程组的解是:

x = - 3 + 3, x = - 3 - 3

作图

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