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人気のある代数 >

-10x^2+x+11=0

解

- 10 x^{2} + x + 11 = 0

解

x = - 1, x = \frac{11}{10}

+1

十進法表記

x = - 1, x = 1.1

解答ステップ

- 10 x^{2} + x + 11 = 0

解くとthe二次式

x_{1, 2} = \frac{- 1 \pm 1 ^{2} - 4 ( - 10 ) \cdot 11}{2 ( - 10 )}

1^{2} - 4 (- 10) \cdot 11 = 21

x_{1, 2} = \frac{- 1 \pm 21}{2 ( - 10 )}

解を分離する

x_{1} = \frac{- 1 + 21}{2 ( - 10 )}, x_{2} = \frac{- 1 - 21}{2 ( - 10 )}

x = \frac{- 1 + 21}{2 ( - 10 )} : - 1

x = \frac{- 1 - 21}{2 ( - 10 )} : \frac{11}{10}

二次equationの解:

x = - 1, x = \frac{11}{10}

グラフ

人気の例

8^{2} + b^{2} = 1 0^{2}

x^{2} + 4 x = 17

w^{2} + 11 w + 28 = 0

0 = - 16 t^{2} + 160 t

320=-20x^2+320x-780

320 = - 20 x^{2} + 320 x - 780