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人気のある代数 >

9x^2-9x+19=0

解

9 x^{2} - 9 x + 19 = 0

解

x = \frac{1}{2} + i \frac{67}{6}, x = \frac{1}{2} - i \frac{67}{6}

解答ステップ

9 x^{2} - 9 x + 19 = 0

解くとthe二次式

x_{1, 2} = \frac{- ( - 9 ) \pm ( - 9 ) ^{2} - 4 \cdot 9 \cdot 19}{2 \cdot 9}

簡素化

(- 9)^{2} - 4 \cdot 9 \cdot 19 : 367 i

x_{1, 2} = \frac{- ( - 9 ) \pm 3 67 i}{2 \cdot 9}

解を分離する

x_{1} = \frac{- ( - 9 ) + 3 67 i}{2 \cdot 9}, x_{2} = \frac{- ( - 9 ) - 3 67 i}{2 \cdot 9}

x = \frac{- ( - 9 ) + 3 67 i}{2 \cdot 9} : \frac{1}{2} + i \frac{67}{6}

x = \frac{- ( - 9 ) - 3 67 i}{2 \cdot 9} : \frac{1}{2} - i \frac{67}{6}

二次equationの解:

x = \frac{1}{2} + i \frac{67}{6}, x = \frac{1}{2} - i \frac{67}{6}

グラフ

人気の例

x^{2} + 2 x - 12 = - 12

4 x^{2} + 17 x + 17 = 1

x^{2} + 3 x - 0.9 = 0

4.905x^2-90x-150=0

4.905 x^{2} - 90 x - 150 = 0

completesquare x^2-10x+25=0

co m pl e t es q u a re x^{2} - 10 x + 25 = 0