6x^2-30x=0

解

6 x^{2} - 30 x = 0

x = 5, x = 0

解答ステップ

6 x^{2} - 30 x = 0

解くとthe二次式

x_{1, 2} = \frac{- ( - 30 ) \pm ( - 30 ) ^{2} - 4 \cdot 6 \cdot 0}{2 \cdot 6}

(- 30)^{2} - 4 \cdot 6 \cdot 0 = 30

x_{1, 2} = \frac{- ( - 30 ) \pm 30}{2 \cdot 6}

解を分離する

x_{1} = \frac{- ( - 30 ) + 30}{2 \cdot 6}, x_{2} = \frac{- ( - 30 ) - 30}{2 \cdot 6}

x = \frac{- ( - 30 ) + 30}{2 \cdot 6} : 5

x = \frac{- ( - 30 ) - 30}{2 \cdot 6} : 0

二次equationの解:

x = 5, x = 0