11x^2=8

解

11 x^{2} = 8

x = \frac{2 2}{11}, x = - \frac{2 2}{11}

十進法表記

x = 0.85280 \dots, x = - 0.85280 \dots

解答ステップ

11 x^{2} = 8

以下で両辺を割る

11

x^{2} = \frac{8}{11}

x^{2} = f (a)

の場合, 解は

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

x = \frac{8}{11}, x = - \frac{8}{11}

\frac{8}{11} = \frac{2 2}{11}

- \frac{8}{11} = - \frac{2 2}{11}

x = \frac{2 2}{11}, x = - \frac{2 2}{11}