4x^2+98=0

解

4 x^{2} + 98 = 0

x = \frac{7}{2} i, x = - \frac{7}{2} i

解答ステップ

4 x^{2} + 98 = 0

98

を右側に移動します

4 x^{2} = - 98

以下で両辺を割る

4

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

x^{2} = f (a)

の場合, 解は

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

x = - \frac{49}{2}, x = - - \frac{49}{2}

- \frac{49}{2} = \frac{7}{2} i

- - \frac{49}{2} = - \frac{7}{2} i

x = \frac{7}{2} i, x = - \frac{7}{2} i