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人気のある代数 >

-9x^2-4x-2=0

解

- 9 x^{2} - 4 x - 2 = 0

解

x = - \frac{2}{9} - i \frac{14}{9}, x = - \frac{2}{9} + i \frac{14}{9}

解答ステップ

- 9 x^{2} - 4 x - 2 = 0

解くとthe二次式

x_{1, 2} = \frac{- ( - 4 ) \pm ( - 4 ) ^{2} - 4 ( - 9 ) ( - 2 )}{2 ( - 9 )}

簡素化

(- 4)^{2} - 4 (- 9) (- 2) : 214 i

x_{1, 2} = \frac{- ( - 4 ) \pm 2 14 i}{2 ( - 9 )}

解を分離する

x_{1} = \frac{- ( - 4 ) + 2 14 i}{2 ( - 9 )}, x_{2} = \frac{- ( - 4 ) - 2 14 i}{2 ( - 9 )}

x = \frac{- ( - 4 ) + 2 14 i}{2 ( - 9 )} : - \frac{2}{9} - i \frac{14}{9}

x = \frac{- ( - 4 ) - 2 14 i}{2 ( - 9 )} : - \frac{2}{9} + i \frac{14}{9}

二次equationの解:

x = - \frac{2}{9} - i \frac{14}{9}, x = - \frac{2}{9} + i \frac{14}{9}

グラフ

人気の例

x^2+(15/17)^2=1

x^{2} + (\frac{15}{17})^{2} = 1

80(X+6)-80X=3X(X+6)

80 (X + 6) - 80 X = 3 X (X + 6)

completesquare-2x^2-16x-37

co m pl e t es q u a re - 2 x^{2} - 16 x - 37

25 k^{2} - 36 = 0

因数 4x^2-x-3=0

f a c t or 4 x^{2} - x - 3 = 0