100x^2-60x+9=0

解

100 x^{2} - 60 x + 9 = 0

x = \frac{3}{10}

十進法表記

x = 0.3

解答ステップ

100 x^{2} - 60 x + 9 = 0

解くとthe二次式

x_{1, 2} = \frac{- ( - 60 ) \pm ( - 60 ) ^{2} - 4 \cdot 100 \cdot 9}{2 \cdot 100}

(- 60)^{2} - 4 \cdot 100 \cdot 9 = 0

x_{1, 2} = \frac{- ( - 60 ) \pm 0}{2 \cdot 100}

x = \frac{- ( - 60 )}{2 \cdot 100}

\frac{- ( - 60 )}{2 \cdot 100} = \frac{3}{10}

x = \frac{3}{10}

二次equationの解:

x = \frac{3}{10}