30y^2-25000y+4375000=0

解

30 y^{2} - 25000 y + 4375000 = 0

y = \frac{1750}{3}, y = 250

十進法表記

y = 583.33333 \dots, y = 250

解答ステップ

30 y^{2} - 25000 y + 4375000 = 0

解くとthe二次式

y_{1, 2} = \frac{- ( - 25000 ) \pm ( - 25000 ) ^{2} - 4 \cdot 30 \cdot 4375000}{2 \cdot 30}

(- 25000)^{2} - 4 \cdot 30 \cdot 4375000 = 10000

y_{1, 2} = \frac{- ( - 25000 ) \pm 10000}{2 \cdot 30}

解を分離する

y_{1} = \frac{- ( - 25000 ) + 10000}{2 \cdot 30}, y_{2} = \frac{- ( - 25000 ) - 10000}{2 \cdot 30}

y = \frac{- ( - 25000 ) + 10000}{2 \cdot 30} : \frac{1750}{3}

y = \frac{- ( - 25000 ) - 10000}{2 \cdot 30} : 250

二次equationの解:

y = \frac{1750}{3}, y = 250