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人気のある代数 >

-x^2+10x+25=0

解

- x^{2} + 10 x + 25 = 0

解

x = - 5 (2 - 1), x = 5 (1 + 2)

+1

十進法表記

x = - 2.07106 \dots, x = 12.07106 \dots

解答ステップ

- x^{2} + 10 x + 25 = 0

解くとthe二次式

x_{1, 2} = \frac{- 10 \pm 1 0 ^{2} - 4 ( - 1 ) \cdot 25}{2 ( - 1 )}

1 0^{2} - 4 (- 1) \cdot 25 = 102

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

解を分離する

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

x = \frac{- 10 + 10 2}{2 ( - 1 )} : - 5 (2 - 1)

x = \frac{- 10 - 10 2}{2 ( - 1 )} : 5 (1 + 2)

二次equationの解:

x = - 5 (2 - 1), x = 5 (1 + 2)

グラフ

人気の例

10 = 3 Q^{2} - 18 Q + 5

roo t s s^{2} + 4 s + 13

4 x^{2} + 11 x - 108 = 0

x^{2} = - 166

-6x^2+24x-120=0

- 6 x^{2} + 24 x - 120 = 0