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 >

8x^2-38x+35=0

解

8 x^{2} - 38 x + 35 = 0

解

x = \frac{7}{2}, x = \frac{5}{4}

+1

十進法表記

x = 3.5, x = 1.25

解答ステップ

8 x^{2} - 38 x + 35 = 0

解くとthe二次式

x_{1, 2} = \frac{- ( - 38 ) \pm ( - 38 ) ^{2} - 4 \cdot 8 \cdot 35}{2 \cdot 8}

(- 38)^{2} - 4 \cdot 8 \cdot 35 = 18

x_{1, 2} = \frac{- ( - 38 ) \pm 18}{2 \cdot 8}

解を分離する

x_{1} = \frac{- ( - 38 ) + 18}{2 \cdot 8}, x_{2} = \frac{- ( - 38 ) - 18}{2 \cdot 8}

x = \frac{- ( - 38 ) + 18}{2 \cdot 8} : \frac{7}{2}

x = \frac{- ( - 38 ) - 18}{2 \cdot 8} : \frac{5}{4}

二次equationの解:

x = \frac{7}{2}, x = \frac{5}{4}

グラフ

人気の例

3 X^{2} - 48 = 0

-6x^2+9=-3x^2+6

- 6 x^{2} + 9 = - 3 x^{2} + 6

solvefor v,(0.5v^2)/1 =350

so l v e f or v, \frac{0.5 v ^{2}}{1} = 350

completesquare x^2-16x+64=0

co m pl e t es q u a re x^{2} - 16 x + 64 = 0

x^2-0.4x+4.04=0

x^{2} - 0.4 x + 4.04 = 0