-x^2+100x=0

解

- x^{2} + 100 x = 0

x = 0, x = 100

解答ステップ

- x^{2} + 100 x = 0

解くとthe二次式

x_{1, 2} = \frac{- 100 \pm 10 0 ^{2} - 4 ( - 1 ) \cdot 0}{2 ( - 1 )}

10 0^{2} - 4 (- 1) \cdot 0 = 100

x_{1, 2} = \frac{- 100 \pm 100}{2 ( - 1 )}

解を分離する

x_{1} = \frac{- 100 + 100}{2 ( - 1 )}, x_{2} = \frac{- 100 - 100}{2 ( - 1 )}

x = \frac{- 100 + 100}{2 ( - 1 )} : 0

x = \frac{- 100 - 100}{2 ( - 1 )} : 100

二次equationの解:

x = 0, x = 100