8x^2+50=0

解

8 x^{2} + 50 = 0

x = \frac{5}{2} i, x = - \frac{5}{2} i

解答ステップ

8 x^{2} + 50 = 0

50

を右側に移動します

8 x^{2} = - 50

以下で両辺を割る

8

x^{2} = - \frac{25}{4}

x^{2} = f (a)

の場合, 解は

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

x = - \frac{25}{4}, x = - - \frac{25}{4}

- \frac{25}{4} = \frac{5}{2} i

- - \frac{25}{4} = - \frac{5}{2} i

x = \frac{5}{2} i, x = - \frac{5}{2} i