64x^2=49

解

64 x^{2} = 49

x = \frac{7}{8}, x = - \frac{7}{8}

十進法表記

x = 0.875, x = - 0.875

解答ステップ

64 x^{2} = 49

以下で両辺を割る

64

x^{2} = \frac{49}{64}

x^{2} = f (a)

の場合, 解は

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

x = \frac{49}{64}, x = - \frac{49}{64}

\frac{49}{64} = \frac{7}{8}

- \frac{49}{64} = - \frac{7}{8}

x = \frac{7}{8}, x = - \frac{7}{8}