-0.000004x^2-0.00007x+0.4651983=0

解

- 0.000004 x^{2} - 0.00007 x + 0.4651983 = 0

x = - \frac{0.00007 + 7.44807 E - 6}{0.000008}, x = \frac{7.44807 E - 6 - 0.00007}{0.000008}

十進法表記

x = - 349.88946 \dots, x = 332.38946 \dots

解答ステップ

- 0.000004 x^{2} - 0.00007 x + 0.4651983 = 0

解くとthe二次式

x_{1, 2} = \frac{- ( - 0.00007 ) \pm ( - 0.00007 ) ^{2} - 4 ( - 0.000004 ) \cdot 0.4651983}{2 ( - 0.000004 )}

(- 0.00007)^{2} - 4 (- 0.000004) \cdot 0.4651983 = 7.44807 E - 6

x_{1, 2} = \frac{- ( - 0.00007 ) \pm 7.44807 E - 6}{2 ( - 0.000004 )}

解を分離する

x_{1} = \frac{- ( - 0.00007 ) + 7.44807 E - 6}{2 ( - 0.000004 )}, x_{2} = \frac{- ( - 0.00007 ) - 7.44807 E - 6}{2 ( - 0.000004 )}

x = \frac{- ( - 0.00007 ) + 7.44807 E - 6}{2 ( - 0.000004 )} : - \frac{0.00007 + 7.44807 E - 6}{0.000008}

x = \frac{- ( - 0.00007 ) - 7.44807 E - 6}{2 ( - 0.000004 )} : \frac{7.44807 E - 6 - 0.00007}{0.000008}

二次equationの解:

x = - \frac{0.00007 + 7.44807 E - 6}{0.000008}, x = \frac{7.44807 E - 6 - 0.00007}{0.000008}