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人気のある代数 >

-8x^2-157x+60=0

解

- 8 x^{2} - 157 x + 60 = 0

解

x = - 20, x = \frac{3}{8}

+1

十進法表記

x = - 20, x = 0.375

解答ステップ

- 8 x^{2} - 157 x + 60 = 0

解くとthe二次式

x_{1, 2} = \frac{- ( - 157 ) \pm ( - 157 ) ^{2} - 4 ( - 8 ) \cdot 60}{2 ( - 8 )}

(- 157)^{2} - 4 (- 8) \cdot 60 = 163

x_{1, 2} = \frac{- ( - 157 ) \pm 163}{2 ( - 8 )}

解を分離する

x_{1} = \frac{- ( - 157 ) + 163}{2 ( - 8 )}, x_{2} = \frac{- ( - 157 ) - 163}{2 ( - 8 )}

x = \frac{- ( - 157 ) + 163}{2 ( - 8 )} : - 20

x = \frac{- ( - 157 ) - 163}{2 ( - 8 )} : \frac{3}{8}

二次equationの解:

x = - 20, x = \frac{3}{8}

グラフ

人気の例

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