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人気のある代数 >

-12x-x^2=0

解

- 12 x - x^{2} = 0

解

x = - 12, x = 0

解答ステップ

- 12 x - x^{2} = 0

標準的な形式で書く

a x^{2} + b x + c = 0

- x^{2} - 12 x = 0

解くとthe二次式

x_{1, 2} = \frac{- ( - 12 ) \pm ( - 12 ) ^{2} - 4 ( - 1 ) \cdot 0}{2 ( - 1 )}

(- 12)^{2} - 4 (- 1) \cdot 0 = 12

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

解を分離する

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

x = \frac{- ( - 12 ) + 12}{2 ( - 1 )} : - 12

x = \frac{- ( - 12 ) - 12}{2 ( - 1 )} : 0

二次equationの解:

x = - 12, x = 0

グラフ

人気の例

2 x^{2} - 12 x + 1 = 15

x^{2} - \frac{x}{3} = 0

completesquare x^2+10x-7

co m pl e t es q u a re x^{2} + 10 x - 7

3 = 4 x - x^{2}

3 x^{2} + 9 x + 1 = 0