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人気のある代数 >

2x^2+15x-192=0

解

2 x^{2} + 15 x - 192 = 0

解

x = \frac{- 15 + 1761}{4}, x = \frac{- 15 - 1761}{4}

+1

十進法表記

x = 6.74106 \dots, x = - 14.24106 \dots

解答ステップ

2 x^{2} + 15 x - 192 = 0

解くとthe二次式

x_{1, 2} = \frac{- 15 \pm 1 5 ^{2} - 4 \cdot 2 ( - 192 )}{2 \cdot 2}

1 5^{2} - 4 \cdot 2 (- 192) = 1761

x_{1, 2} = \frac{- 15 \pm 1761}{2 \cdot 2}

解を分離する

x_{1} = \frac{- 15 + 1761}{2 \cdot 2}, x_{2} = \frac{- 15 - 1761}{2 \cdot 2}

x = \frac{- 15 + 1761}{2 \cdot 2} : \frac{- 15 + 1761}{4}

x = \frac{- 15 - 1761}{2 \cdot 2} : \frac{- 15 - 1761}{4}

二次equationの解:

x = \frac{- 15 + 1761}{4}, x = \frac{- 15 - 1761}{4}

グラフ

人気の例

16 x^{2} - 80 x + 64 = 0

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(x - 5)^{2} = (x + 5)^{2} - 3 x^{2} - 25

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