x^2-2x-323=0

解

x^{2} - 2 x - 323 = 0

x = 19, x = - 17

解答ステップ

x^{2} - 2 x - 323 = 0

解くとthe二次式

x_{1, 2} = \frac{- ( - 2 ) \pm ( - 2 ) ^{2} - 4 \cdot 1 \cdot ( - 323 )}{2 \cdot 1}

(- 2)^{2} - 4 \cdot 1 \cdot (- 323) = 36

x_{1, 2} = \frac{- ( - 2 ) \pm 36}{2 \cdot 1}

解を分離する

x_{1} = \frac{- ( - 2 ) + 36}{2 \cdot 1}, x_{2} = \frac{- ( - 2 ) - 36}{2 \cdot 1}

x = \frac{- ( - 2 ) + 36}{2 \cdot 1} : 19

x = \frac{- ( - 2 ) - 36}{2 \cdot 1} : - 17

二次equationの解:

x = 19, x = - 17