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人気のある代数 >

-6x^2-8x+5=0

解

- 6 x^{2} - 8 x + 5 = 0

解

x = - \frac{4 + 46}{6}, x = \frac{46 - 4}{6}

+1

十進法表記

x = - 1.79705 \dots, x = 0.46372 \dots

解答ステップ

- 6 x^{2} - 8 x + 5 = 0

解くとthe二次式

x_{1, 2} = \frac{- ( - 8 ) \pm ( - 8 ) ^{2} - 4 ( - 6 ) \cdot 5}{2 ( - 6 )}

(- 8)^{2} - 4 (- 6) \cdot 5 = 246

x_{1, 2} = \frac{- ( - 8 ) \pm 2 46}{2 ( - 6 )}

解を分離する

x_{1} = \frac{- ( - 8 ) + 2 46}{2 ( - 6 )}, x_{2} = \frac{- ( - 8 ) - 2 46}{2 ( - 6 )}

x = \frac{- ( - 8 ) + 2 46}{2 ( - 6 )} : - \frac{4 + 46}{6}

x = \frac{- ( - 8 ) - 2 46}{2 ( - 6 )} : \frac{46 - 4}{6}

二次equationの解:

x = - \frac{4 + 46}{6}, x = \frac{46 - 4}{6}

グラフ

人気の例

(x^{2} + 6 x + 10) = 0

x-2x^2=3x^2-x-3

x - 2 x^{2} = 3 x^{2} - x - 3

9 m^{2} + 234 m - 79 = 0

solvefor y,16+4y^2=16

so l v e f or y, 16 + 4 y^{2} = 16

completesquare x^2+2x-6

co m pl e t es q u a re x^{2} + 2 x - 6