20.76672=x^2*12.7

解

20.76672 = x^{2} \cdot 12.7

x = \frac{104 6}{25 5 \frac{127}{10}}, x = - \frac{104 6}{25 5 \frac{127}{10}}

十進法表記

x = 1.27873 \dots, x = - 1.27873 \dots

解答ステップ

20.76672 = x^{2} \cdot 12.7

辺を交換する

x^{2} \cdot 12.7 = 20.76672

以下で両辺を割る

12.7

x^{2} = \frac{20.76672}{12.7}

x^{2} = f (a)

の場合, 解は

x = f (a), - f (a)

x = \frac{20.76672}{12.7}, x = - \frac{20.76672}{12.7}

\frac{20.76672}{12.7} = \frac{104 6}{25 5 \frac{127}{10}}

- \frac{20.76672}{12.7} = - \frac{104 6}{25 5 \frac{127}{10}}

x = \frac{104 6}{25 5 \frac{127}{10}}, x = - \frac{104 6}{25 5 \frac{127}{10}}