12x^2-48x+36=0

解

12 x^{2} - 48 x + 36 = 0

x = 3, x = 1

解答ステップ

12 x^{2} - 48 x + 36 = 0

解くとthe二次式

x_{1, 2} = \frac{- ( - 48 ) \pm ( - 48 ) ^{2} - 4 \cdot 12 \cdot 36}{2 \cdot 12}

(- 48)^{2} - 4 \cdot 12 \cdot 36 = 24

x_{1, 2} = \frac{- ( - 48 ) \pm 24}{2 \cdot 12}

解を分離する

x_{1} = \frac{- ( - 48 ) + 24}{2 \cdot 12}, x_{2} = \frac{- ( - 48 ) - 24}{2 \cdot 12}

x = \frac{- ( - 48 ) + 24}{2 \cdot 12} : 3

x = \frac{- ( - 48 ) - 24}{2 \cdot 12} : 1

二次equationの解:

x = 3, x = 1