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 >

-3x^2+9x-2=0

解

- 3 x^{2} + 9 x - 2 = 0

解

x = \frac{9 - 57}{6}, x = \frac{9 + 57}{6}

+1

十進法表記

x = 0.24169 \dots, x = 2.75830 \dots

解答ステップ

- 3 x^{2} + 9 x - 2 = 0

解くとthe二次式

x_{1, 2} = \frac{- 9 \pm 9 ^{2} - 4 ( - 3 ) ( - 2 )}{2 ( - 3 )}

9^{2} - 4 (- 3) (- 2) = 57

x_{1, 2} = \frac{- 9 \pm 57}{2 ( - 3 )}

解を分離する

x_{1} = \frac{- 9 + 57}{2 ( - 3 )}, x_{2} = \frac{- 9 - 57}{2 ( - 3 )}

x = \frac{- 9 + 57}{2 ( - 3 )} : \frac{9 - 57}{6}

x = \frac{- 9 - 57}{2 ( - 3 )} : \frac{9 + 57}{6}

二次equationの解:

x = \frac{9 - 57}{6}, x = \frac{9 + 57}{6}

グラフ

人気の例

-4x^2+3=5x^2-6x-4

- 4 x^{2} + 3 = 5 x^{2} - 6 x - 4

completesquare x^2-8x+20=0

co m pl e t es q u a re x^{2} - 8 x + 20 = 0

4.9t^2-11t+241=0

4.9 t^{2} - 11 t + 241 = 0

2 y^{2} - y + 2 = 0

x^{2} + 3 x - 550 = 0