x^2+38x=0

解

x^{2} + 38 x = 0

x = 0, x = - 38

解答ステップ

x^{2} + 38 x = 0

解くとthe二次式

x_{1, 2} = \frac{- 38 \pm 3 8 ^{2} - 4 \cdot 1 \cdot 0}{2 \cdot 1}

3 8^{2} - 4 \cdot 1 \cdot 0 = 38

x_{1, 2} = \frac{- 38 \pm 38}{2 \cdot 1}

解を分離する

x_{1} = \frac{- 38 + 38}{2 \cdot 1}, x_{2} = \frac{- 38 - 38}{2 \cdot 1}

x = \frac{- 38 + 38}{2 \cdot 1} : 0

x = \frac{- 38 - 38}{2 \cdot 1} : - 38

二次equationの解:

x = 0, x = - 38