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人気のある代数 >

29x^2+140x+28=0

解

29 x^{2} + 140 x + 28 = 0

解

x = \frac{2 ( 1022 - 35 )}{29}, x = - \frac{2 ( 35 + 1022 )}{29}

+1

十進法表記

x = - 0.20905 \dots, x = - 4.61853 \dots

解答ステップ

29 x^{2} + 140 x + 28 = 0

解くとthe二次式

x_{1, 2} = \frac{- 140 \pm 14 0 ^{2} - 4 \cdot 29 \cdot 28}{2 \cdot 29}

14 0^{2} - 4 \cdot 29 \cdot 28 = 41022

x_{1, 2} = \frac{- 140 \pm 4 1022}{2 \cdot 29}

解を分離する

x_{1} = \frac{- 140 + 4 1022}{2 \cdot 29}, x_{2} = \frac{- 140 - 4 1022}{2 \cdot 29}

x = \frac{- 140 + 4 1022}{2 \cdot 29} : \frac{2 ( 1022 - 35 )}{29}

x = \frac{- 140 - 4 1022}{2 \cdot 29} : - \frac{2 ( 35 + 1022 )}{29}

二次equationの解:

x = \frac{2 ( 1022 - 35 )}{29}, x = - \frac{2 ( 35 + 1022 )}{29}

グラフ

人気の例

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