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人気のある代数 >

6x^2-14x-98=0

解

6 x^{2} - 14 x - 98 = 0

解

x = \frac{7 ( 1 + 13 )}{6}, x = \frac{7 ( 1 - 13 )}{6}

+1

十進法表記

x = 5.37314 \dots, x = - 3.03980 \dots

解答ステップ

6 x^{2} - 14 x - 98 = 0

解くとthe二次式

x_{1, 2} = \frac{- ( - 14 ) \pm ( - 14 ) ^{2} - 4 \cdot 6 ( - 98 )}{2 \cdot 6}

(- 14)^{2} - 4 \cdot 6 (- 98) = 1413

x_{1, 2} = \frac{- ( - 14 ) \pm 14 13}{2 \cdot 6}

解を分離する

x_{1} = \frac{- ( - 14 ) + 14 13}{2 \cdot 6}, x_{2} = \frac{- ( - 14 ) - 14 13}{2 \cdot 6}

x = \frac{- ( - 14 ) + 14 13}{2 \cdot 6} : \frac{7 ( 1 + 13 )}{6}

x = \frac{- ( - 14 ) - 14 13}{2 \cdot 6} : \frac{7 ( 1 - 13 )}{6}

二次equationの解:

x = \frac{7 ( 1 + 13 )}{6}, x = \frac{7 ( 1 - 13 )}{6}

グラフ

人気の例

(7/4-2/3 (7/2+1))/(24+2(3+2))

\frac{\frac{7}{4} - \frac{2}{3} ( \frac{7}{2} + 1 )}{24 + 2 ( 3 + 2 )}

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