ja

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

人気のある代数 >

-0.012x^2-8x+430=0

解

- 0.012 x^{2} - 8 x + 430 = 0

解

x = - \frac{2150}{3}, x = 50

+1

十進法表記

x = - 716.66666 \dots, x = 50

解答ステップ

- 0.012 x^{2} - 8 x + 430 = 0

以下で両辺を乗じる:

1000

- 12 x^{2} - 8000 x + 430000 = 0

解くとthe二次式

x_{1, 2} = \frac{- ( - 8000 ) \pm ( - 8000 ) ^{2} - 4 ( - 12 ) \cdot 430000}{2 ( - 12 )}

(- 8000)^{2} - 4 (- 12) \cdot 430000 = 9200

x_{1, 2} = \frac{- ( - 8000 ) \pm 9200}{2 ( - 12 )}

解を分離する

x_{1} = \frac{- ( - 8000 ) + 9200}{2 ( - 12 )}, x_{2} = \frac{- ( - 8000 ) - 9200}{2 ( - 12 )}

x = \frac{- ( - 8000 ) + 9200}{2 ( - 12 )} : - \frac{2150}{3}

x = \frac{- ( - 8000 ) - 9200}{2 ( - 12 )} : 50

二次equationの解:

x = - \frac{2150}{3}, x = 50

グラフ

人気の例

z^{2} + 4 z + 16 = 0

x^{2} - 16 x + 64 = 12

7 x^{2} + 4 x + 4 = 8 x + 2

55 x^{2} = 34 x + 21

x^{2} + 21 x + 54 = 0