12x^2-108x=0

解

12 x^{2} - 108 x = 0

x = 9, x = 0

解答ステップ

12 x^{2} - 108 x = 0

解くとthe二次式

x_{1, 2} = \frac{- ( - 108 ) \pm ( - 108 ) ^{2} - 4 \cdot 12 \cdot 0}{2 \cdot 12}

(- 108)^{2} - 4 \cdot 12 \cdot 0 = 108

x_{1, 2} = \frac{- ( - 108 ) \pm 108}{2 \cdot 12}

解を分離する

x_{1} = \frac{- ( - 108 ) + 108}{2 \cdot 12}, x_{2} = \frac{- ( - 108 ) - 108}{2 \cdot 12}

x = \frac{- ( - 108 ) + 108}{2 \cdot 12} : 9

x = \frac{- ( - 108 ) - 108}{2 \cdot 12} : 0

二次equationの解:

x = 9, x = 0