4h^2-20h+25=0

解

4 h^{2} - 20 h + 25 = 0

h = \frac{5}{2}

十進法表記

h = 2.5

解答ステップ

4 h^{2} - 20 h + 25 = 0

解くとthe二次式

h_{1, 2} = \frac{- ( - 20 ) \pm ( - 20 ) ^{2} - 4 \cdot 4 \cdot 25}{2 \cdot 4}

(- 20)^{2} - 4 \cdot 4 \cdot 25 = 0

h_{1, 2} = \frac{- ( - 20 ) \pm 0}{2 \cdot 4}

h = \frac{- ( - 20 )}{2 \cdot 4}

\frac{- ( - 20 )}{2 \cdot 4} = \frac{5}{2}

h = \frac{5}{2}

二次equationの解:

h = \frac{5}{2}