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人気のある代数 >

x^2-26/3 x+14=0

解

x^{2} - \frac{26}{3} x + 14 = 0

解

x = \frac{13 + 43}{3}, x = \frac{13 - 43}{3}

+1

十進法表記

x = 6.51914 \dots, x = 2.14752 \dots

解答ステップ

x^{2} - \frac{26}{3} x + 14 = 0

以下で両辺を乗じる:

3

3 x^{2} - 26 x + 42 = 0

解くとthe二次式

x_{1, 2} = \frac{- ( - 26 ) \pm ( - 26 ) ^{2} - 4 \cdot 3 \cdot 42}{2 \cdot 3}

(- 26)^{2} - 4 \cdot 3 \cdot 42 = 243

x_{1, 2} = \frac{- ( - 26 ) \pm 2 43}{2 \cdot 3}

解を分離する

x_{1} = \frac{- ( - 26 ) + 2 43}{2 \cdot 3}, x_{2} = \frac{- ( - 26 ) - 2 43}{2 \cdot 3}

x = \frac{- ( - 26 ) + 2 43}{2 \cdot 3} : \frac{13 + 43}{3}

x = \frac{- ( - 26 ) - 2 43}{2 \cdot 3} : \frac{13 - 43}{3}

二次equationの解:

x = \frac{13 + 43}{3}, x = \frac{13 - 43}{3}

グラフ

人気の例

- x^{2} + 5 = - 2

X^{2} - 4 X - 5 = 0

- 10 x - x^{2} - 6 = 19

64 - 4 x^{2} = 0

solvefor x,xy^2-4x^2-3y^2+12x=0

so l v e f or x, x y^{2} - 4 x^{2} - 3 y^{2} + 12 x = 0