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人気のある代数 >

0.585=-0.26x^2+0.93x+0.8791

解

0.585 = - 0.26 x^{2} + 0.93 x + 0.8791

解

x = - \frac{- 0.93 + 1.170764}{0.52}, x = \frac{0.93 + 1.170764}{0.52}

+1

十進法表記

x = - 0.29234 \dots, x = 3.86926 \dots

解答ステップ

0.585 = - 0.26 x^{2} + 0.93 x + 0.8791

辺を交換する

- 0.26 x^{2} + 0.93 x + 0.8791 = 0.585

0.585

を左側に移動します

- 0.26 x^{2} + 0.93 x + 0.2941 = 0

解くとthe二次式

x_{1, 2} = \frac{- 0.93 \pm 0.9 3 ^{2} - 4 ( - 0.26 ) \cdot 0.2941}{2 ( - 0.26 )}

0.9 3^{2} - 4 (- 0.26) \cdot 0.2941 = 1.170764

x_{1, 2} = \frac{- 0.93 \pm 1.170764}{2 ( - 0.26 )}

解を分離する

x_{1} = \frac{- 0.93 + 1.170764}{2 ( - 0.26 )}, x_{2} = \frac{- 0.93 - 1.170764}{2 ( - 0.26 )}

x = \frac{- 0.93 + 1.170764}{2 ( - 0.26 )} : - \frac{- 0.93 + 1.170764}{0.52}

x = \frac{- 0.93 - 1.170764}{2 ( - 0.26 )} : \frac{0.93 + 1.170764}{0.52}

二次equationの解:

x = - \frac{- 0.93 + 1.170764}{0.52}, x = \frac{0.93 + 1.170764}{0.52}

グラフ

人気の例

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