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人気のある代数 >

x^2+1.41x+1=0

解

x^{2} + 1.41 x + 1 = 0

解

x = - \frac{141}{200} + i \frac{20119}{200}, x = - \frac{141}{200} - i \frac{20119}{200}

解答ステップ

x^{2} + 1.41 x + 1 = 0

以下で両辺を乗じる:

100

100 x^{2} + 141 x + 100 = 0

解くとthe二次式

x_{1, 2} = \frac{- 141 \pm 14 1 ^{2} - 4 \cdot 100 \cdot 100}{2 \cdot 100}

簡素化

14 1^{2} - 4 \cdot 100 \cdot 100 : 20119 i

x_{1, 2} = \frac{- 141 \pm 20119 i}{2 \cdot 100}

解を分離する

x_{1} = \frac{- 141 + 20119 i}{2 \cdot 100}, x_{2} = \frac{- 141 - 20119 i}{2 \cdot 100}

x = \frac{- 141 + 20119 i}{2 \cdot 100} : - \frac{141}{200} + i \frac{20119}{200}

x = \frac{- 141 - 20119 i}{2 \cdot 100} : - \frac{141}{200} - i \frac{20119}{200}

二次equationの解:

x = - \frac{141}{200} + i \frac{20119}{200}, x = - \frac{141}{200} - i \frac{20119}{200}

グラフ

人気の例

x^2+10=-7x^2-39

x^{2} + 10 = - 7 x^{2} - 39

7 x^{2} - 1 = 0

x (x + 3) = 18

solvefor x,-(x^2)/6-(y^2)/6+(z^2)/6 =1

so l v e f or x, - \frac{x ^{2}}{6} - \frac{y ^{2}}{6} + \frac{z ^{2}}{6} = 1

x^{2} + 4 x + c = 21