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人気のある代数 >

-6y^2-9y+1=0

解

- 6 y^{2} - 9 y + 1 = 0

解

y = - \frac{9 + 105}{12}, y = \frac{105 - 9}{12}

+1

十進法表記

y = - 1.60391 \dots, y = 0.10391 \dots

解答ステップ

- 6 y^{2} - 9 y + 1 = 0

解くとthe二次式

y_{1, 2} = \frac{- ( - 9 ) \pm ( - 9 ) ^{2} - 4 ( - 6 ) \cdot 1}{2 ( - 6 )}

(- 9)^{2} - 4 (- 6) \cdot 1 = 105

y_{1, 2} = \frac{- ( - 9 ) \pm 105}{2 ( - 6 )}

解を分離する

y_{1} = \frac{- ( - 9 ) + 105}{2 ( - 6 )}, y_{2} = \frac{- ( - 9 ) - 105}{2 ( - 6 )}

y = \frac{- ( - 9 ) + 105}{2 ( - 6 )} : - \frac{9 + 105}{12}

y = \frac{- ( - 9 ) - 105}{2 ( - 6 )} : \frac{105 - 9}{12}

二次equationの解:

y = - \frac{9 + 105}{12}, y = \frac{105 - 9}{12}

グラフ

人気の例

8 x^{2} - 22 x + 5 = 0

solvefor x,x^2+6x-3=0

so l v e f or x, x^{2} + 6 x - 3 = 0

completesquare 3x^2-9x+4=0

co m pl e t es q u a re 3 x^{2} - 9 x + 4 = 0

(x - 2)^{2} = - 13

solvefor x,-(4y^2-10xy+6x^2)=0

so l v e f or x, - (4 y^{2} - 10 x y + 6 x^{2}) = 0