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人気のある代数 >

(1-3(1))x^2+3x-4=0

解

(1 - 3 (1)) x^{2} + 3 x - 4 = 0

解

x = \frac{3}{4} - i \frac{23}{4}, x = \frac{3}{4} + i \frac{23}{4}

解答ステップ

(1 - 3 (1)) x^{2} + 3 x - 4 = 0

拡張

(1 - 3 (1)) x^{2} + 3 x - 4 : - 2 x^{2} + 3 x - 4

- 2 x^{2} + 3 x - 4 = 0

解くとthe二次式

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

簡素化

3^{2} - 4 (- 2) (- 4) : 23 i

x_{1, 2} = \frac{- 3 \pm 23 i}{2 ( - 2 )}

解を分離する

x_{1} = \frac{- 3 + 23 i}{2 ( - 2 )}, x_{2} = \frac{- 3 - 23 i}{2 ( - 2 )}

x = \frac{- 3 + 23 i}{2 ( - 2 )} : \frac{3}{4} - i \frac{23}{4}

x = \frac{- 3 - 23 i}{2 ( - 2 )} : \frac{3}{4} + i \frac{23}{4}

二次equationの解:

x = \frac{3}{4} - i \frac{23}{4}, x = \frac{3}{4} + i \frac{23}{4}

グラフ

人気の例

x^2-5ax-36a^2=0

x^{2} - 5 a x - 36 a^{2} = 0

3 x^{2} = 16 - 2 x

0 = - x^{2} + 3

n^{2} + \frac{n}{3} = - 180

completesquare 2x^2-6x+2

co m pl e t es q u a re 2 x^{2} - 6 x + 2