(x^2)/(16)-4/49 =0

解

\frac{x ^{2}}{16} - \frac{4}{49} = 0

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

十進法表記

x = 1.14285 \dots, x = - 1.14285 \dots

解答ステップ

\frac{x ^{2}}{16} - \frac{4}{49} = 0

\frac{4}{49}

を右側に移動します

\frac{x ^{2}}{16} = \frac{4}{49}

以下で両辺を乗じる:

16

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

x^{2} = f (a)

の場合, 解は

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

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

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

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

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