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受欢迎的代数 >

x^2+16x+14=0

解答

x^{2} + 16 x + 14 = 0

解答

x = - 8 + 52, x = - 8 - 52

+1

十进制

x = - 0.92893 \dots, x = - 15.07106 \dots

求解步骤

x^{2} + 16 x + 14 = 0

使用求根公式求解

x_{1, 2} = \frac{- 16 \pm 1 6 ^{2} - 4 \cdot 1 \cdot 14}{2 \cdot 1}

1 6^{2} - 4 \cdot 1 \cdot 14 = 102

x_{1, 2} = \frac{- 16 \pm 10 2}{2 \cdot 1}

将解分隔开

x_{1} = \frac{- 16 + 10 2}{2 \cdot 1}, x_{2} = \frac{- 16 - 10 2}{2 \cdot 1}

x = \frac{- 16 + 10 2}{2 \cdot 1} : - 8 + 52

x = \frac{- 16 - 10 2}{2 \cdot 1} : - 8 - 52

二次方程组的解是:

x = - 8 + 52, x = - 8 - 52

作图

流行的例子

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