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人気のある代数 >

-3x^2-24x-19=0

解

- 3 x^{2} - 24 x - 19 = 0

解

x = - \frac{12 + 87}{3}, x = - \frac{12 - 87}{3}

+1

十進法表記

x = - 7.10912 \dots, x = - 0.89087 \dots

解答ステップ

- 3 x^{2} - 24 x - 19 = 0

解くとthe二次式

x_{1, 2} = \frac{- ( - 24 ) \pm ( - 24 ) ^{2} - 4 ( - 3 ) ( - 19 )}{2 ( - 3 )}

(- 24)^{2} - 4 (- 3) (- 19) = 287

x_{1, 2} = \frac{- ( - 24 ) \pm 2 87}{2 ( - 3 )}

解を分離する

x_{1} = \frac{- ( - 24 ) + 2 87}{2 ( - 3 )}, x_{2} = \frac{- ( - 24 ) - 2 87}{2 ( - 3 )}

x = \frac{- ( - 24 ) + 2 87}{2 ( - 3 )} : - \frac{12 + 87}{3}

x = \frac{- ( - 24 ) - 2 87}{2 ( - 3 )} : - \frac{12 - 87}{3}

二次equationの解:

x = - \frac{12 + 87}{3}, x = - \frac{12 - 87}{3}

グラフ

人気の例

2 x^{2} - 18 = 46

solvefor y,xy^2-x^2y+6=0

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

7 x^{2} + 1 = 29

completesquare x^2-10x-4=0

co m pl e t es q u a re x^{2} - 10 x - 4 = 0

solvefor y,x^2+14xy+49y^2=100

so l v e f or y, x^{2} + 14 x y + 49 y^{2} = 100