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人気のある代数 >

-4x^2-6x+1=0

解

- 4 x^{2} - 6 x + 1 = 0

解

x = - \frac{3 + 13}{4}, x = \frac{13 - 3}{4}

+1

十進法表記

x = - 1.65138 \dots, x = 0.15138 \dots

解答ステップ

- 4 x^{2} - 6 x + 1 = 0

解くとthe二次式

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

(- 6)^{2} - 4 (- 4) \cdot 1 = 213

x_{1, 2} = \frac{- ( - 6 ) \pm 2 13}{2 ( - 4 )}

解を分離する

x_{1} = \frac{- ( - 6 ) + 2 13}{2 ( - 4 )}, x_{2} = \frac{- ( - 6 ) - 2 13}{2 ( - 4 )}

x = \frac{- ( - 6 ) + 2 13}{2 ( - 4 )} : - \frac{3 + 13}{4}

x = \frac{- ( - 6 ) - 2 13}{2 ( - 4 )} : \frac{13 - 3}{4}

二次equationの解:

x = - \frac{3 + 13}{4}, x = \frac{13 - 3}{4}

グラフ

人気の例

solvefor x,x^2+y^2-4x+10y+29=0

so l v e f or x, x^{2} + y^{2} - 4 x + 10 y + 29 = 0

2 x^{2} = - x + 3

completesquare x^2+14x+49=0

co m pl e t es q u a re x^{2} + 14 x + 49 = 0

x^{2} - 14 x - 19 = 0

0 = 12 (x - 3)^{2}