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人気のある代数 >

(-0.02083x^2)+4x-170=0

解

(- 0.02083 x^{2}) + 4 x - 170 = 0

解

x = \frac{4 - 1.8356}{0.04166}, x = \frac{4 + 1.8356}{0.04166}

+1

十進法表記

x = 63.49392 \dots, x = 128.53680 \dots

解答ステップ

(- 0.02083 x^{2}) + 4 x - 170 = 0

改良

- 0.02083 x^{2} + 4 x - 170 = 0

解くとthe二次式

x_{1, 2} = \frac{- 4 \pm 4 ^{2} - 4 ( - 0.02083 ) ( - 170 )}{2 ( - 0.02083 )}

4^{2} - 4 (- 0.02083) (- 170) = 1.8356

x_{1, 2} = \frac{- 4 \pm 1.8356}{2 ( - 0.02083 )}

解を分離する

x_{1} = \frac{- 4 + 1.8356}{2 ( - 0.02083 )}, x_{2} = \frac{- 4 - 1.8356}{2 ( - 0.02083 )}

x = \frac{- 4 + 1.8356}{2 ( - 0.02083 )} : \frac{4 - 1.8356}{0.04166}

x = \frac{- 4 - 1.8356}{2 ( - 0.02083 )} : \frac{4 + 1.8356}{0.04166}

二次equationの解:

x = \frac{4 - 1.8356}{0.04166}, x = \frac{4 + 1.8356}{0.04166}

グラフ

人気の例

roo t s x^{2} - x + 2

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