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人気のある代数 >

3x^2+x-1/12 =0

解

3 x^{2} + x - \frac{1}{12} = 0

解

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

+1

十進法表記

x = 0.06903 \dots, x = - 0.40236 \dots

解答ステップ

3 x^{2} + x - \frac{1}{12} = 0

以下で両辺を乗じる:

12

36 x^{2} + 12 x - 1 = 0

解くとthe二次式

x_{1, 2} = \frac{- 12 \pm 1 2 ^{2} - 4 \cdot 36 ( - 1 )}{2 \cdot 36}

1 2^{2} - 4 \cdot 36 (- 1) = 122

x_{1, 2} = \frac{- 12 \pm 12 2}{2 \cdot 36}

解を分離する

x_{1} = \frac{- 12 + 12 2}{2 \cdot 36}, x_{2} = \frac{- 12 - 12 2}{2 \cdot 36}

x = \frac{- 12 + 12 2}{2 \cdot 36} : \frac{- 1 + 2}{6}

x = \frac{- 12 - 12 2}{2 \cdot 36} : - \frac{1 + 2}{6}

二次equationの解:

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

グラフ

人気の例

11x^2-98=-11+9x

11 x^{2} - 98 = - 11 + 9 x

q^{2} + 2 q - 15 = - 3 q

a \cdot (x^{2}) + b \cdot x = - c

5 t^{2} + 7 t - 1 = 0

solvefor y,y^2-x^2+1=50

so l v e f or y, y^{2} - x^{2} + 1 = 50