-0.000006x^2-0.04x+200=0

解

- 0.000006 x^{2} - 0.04 x + 200 = 0

x = - \frac{0.04 + 0.0064}{0.000012}, x = \frac{0.0064 - 0.04}{0.000012}

十進法表記

x = - 10000, x = 3333.33333 \dots

解答ステップ

- 0.000006 x^{2} - 0.04 x + 200 = 0

解くとthe二次式

x_{1, 2} = \frac{- ( - 0.04 ) \pm ( - 0.04 ) ^{2} - 4 ( - 0.000006 ) \cdot 200}{2 ( - 0.000006 )}

(- 0.04)^{2} - 4 (- 0.000006) \cdot 200 = 0.0064

x_{1, 2} = \frac{- ( - 0.04 ) \pm 0.0064}{2 ( - 0.000006 )}

解を分離する

x_{1} = \frac{- ( - 0.04 ) + 0.0064}{2 ( - 0.000006 )}, x_{2} = \frac{- ( - 0.04 ) - 0.0064}{2 ( - 0.000006 )}

x = \frac{- ( - 0.04 ) + 0.0064}{2 ( - 0.000006 )} : - \frac{0.04 + 0.0064}{0.000012}

x = \frac{- ( - 0.04 ) - 0.0064}{2 ( - 0.000006 )} : \frac{0.0064 - 0.04}{0.000012}

二次equationの解:

x = - \frac{0.04 + 0.0064}{0.000012}, x = \frac{0.0064 - 0.04}{0.000012}