0=-x^2-12x-36

解

0 = - x^{2} - 12 x - 36

x = - 6

解答ステップ

0 = - x^{2} - 12 x - 36

辺を交換する

- x^{2} - 12 x - 36 = 0

解くとthe二次式

x_{1, 2} = \frac{- ( - 12 ) \pm ( - 12 ) ^{2} - 4 ( - 1 ) ( - 36 )}{2 ( - 1 )}

(- 12)^{2} - 4 (- 1) (- 36) = 0

x_{1, 2} = \frac{- ( - 12 ) \pm 0}{2 ( - 1 )}

x = \frac{- ( - 12 )}{2 ( - 1 )}

\frac{- ( - 12 )}{2 ( - 1 )} = - 6

x = - 6

二次equationの解:

x = - 6