-0.00204x^2+0.04318x-0.21133=0

解

- 0.00204 x^{2} + 0.04318 x - 0.21133 = 0

x = \frac{0.04318 - 0.0001400596}{0.00408}, x = \frac{0.04318 + 0.0001400596}{0.00408}

十進法表記

x = 7.68267 \dots, x = 13.48398 \dots

解答ステップ

- 0.00204 x^{2} + 0.04318 x - 0.21133 = 0

解くとthe二次式

x_{1, 2} = \frac{- 0.04318 \pm 0.0431 8 ^{2} - 4 ( - 0.00204 ) ( - 0.21133 )}{2 ( - 0.00204 )}

0.0431 8^{2} - 4 (- 0.00204) (- 0.21133) = 0.0001400596

x_{1, 2} = \frac{- 0.04318 \pm 0.0001400596}{2 ( - 0.00204 )}

解を分離する

x_{1} = \frac{- 0.04318 + 0.0001400596}{2 ( - 0.00204 )}, x_{2} = \frac{- 0.04318 - 0.0001400596}{2 ( - 0.00204 )}

x = \frac{- 0.04318 + 0.0001400596}{2 ( - 0.00204 )} : \frac{0.04318 - 0.0001400596}{0.00408}

x = \frac{- 0.04318 - 0.0001400596}{2 ( - 0.00204 )} : \frac{0.04318 + 0.0001400596}{0.00408}

二次equationの解:

x = \frac{0.04318 - 0.0001400596}{0.00408}, x = \frac{0.04318 + 0.0001400596}{0.00408}