14y^2-112y=0

解

14 y^{2} - 112 y = 0

y = 8, y = 0

解答ステップ

14 y^{2} - 112 y = 0

解くとthe二次式

y_{1, 2} = \frac{- ( - 112 ) \pm ( - 112 ) ^{2} - 4 \cdot 14 \cdot 0}{2 \cdot 14}

(- 112)^{2} - 4 \cdot 14 \cdot 0 = 112

y_{1, 2} = \frac{- ( - 112 ) \pm 112}{2 \cdot 14}

解を分離する

y_{1} = \frac{- ( - 112 ) + 112}{2 \cdot 14}, y_{2} = \frac{- ( - 112 ) - 112}{2 \cdot 14}

y = \frac{- ( - 112 ) + 112}{2 \cdot 14} : 8

y = \frac{- ( - 112 ) - 112}{2 \cdot 14} : 0

二次equationの解:

y = 8, y = 0